Protect yourself against future threats.
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AUSCERT External Security Bulletin Redistribution
ESB-2018.2344
Important: kernel security and bug fix update
15 August 2018
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: kernel
Publisher: Red Hat
Operating System: Red Hat Enterprise Linux Server 7
Red Hat Enterprise Linux WS/Desktop 7
Impact/Access: Execute Arbitrary Code/Commands -- Existing Account
Increased Privileges -- Existing Account
Access Privileged Data -- Existing Account
Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2018-10675 CVE-2018-7566 CVE-2018-5390
CVE-2018-3693 CVE-2018-3646 CVE-2018-3639
CVE-2018-3620 CVE-2017-13215
Reference: ESB-2018.2335
ESB-2018.2280
ESB-2018.2271
ESB-2018.2262
Original Bulletin:
https://access.redhat.com/errata/RHSA-2018:2384
https://access.redhat.com/errata/RHSA-2018:2387
https://access.redhat.com/errata/RHSA-2018:2388
https://access.redhat.com/errata/RHSA-2018:2389
https://access.redhat.com/errata/RHSA-2018:2395
Comment: This bulletin contains five (5) Red Hat security advisories.
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Red Hat Security Advisory
Synopsis: Important: kernel security and bug fix update
Advisory ID: RHSA-2018:2384-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2018:2384
Issue date: 2018-08-14
CVE Names: CVE-2017-13215 CVE-2018-3620 CVE-2018-3646
CVE-2018-3693 CVE-2018-5390 CVE-2018-7566
CVE-2018-10675
=====================================================================
1. Summary:
An update for kernel is now available for Red Hat Enterprise Linux 7.
Red Hat Product Security has rated this update as having a security impact
of Important. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE link(s) in the References section.
2. Relevant releases/architectures:
Red Hat Enterprise Linux Client (v. 7) - noarch, x86_64
Red Hat Enterprise Linux Client Optional (v. 7) - x86_64
Red Hat Enterprise Linux ComputeNode (v. 7) - noarch, x86_64
Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64
Red Hat Enterprise Linux Server (v. 7) - noarch, ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, x86_64
Red Hat Enterprise Linux Workstation (v. 7) - noarch, x86_64
Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) - noarch, ppc64le, s390x
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) - noarch, ppc64le
3. Description:
The kernel packages contain the Linux kernel, the core of any Linux
operating system.
Security Fix(es):
* Modern operating systems implement virtualization of physical memory to
efficiently use available system resources and provide inter-domain
protection through access control and isolation. The L1TF issue was found
in the way the x86 microprocessor designs have implemented speculative
execution of instructions (a commonly used performance optimisation) in
combination with handling of page-faults caused by terminated virtual to
physical address resolving process. As a result, an unprivileged attacker
could use this flaw to read privileged memory of the kernel or other
processes and/or cross guest/host boundaries to read host memory by
conducting targeted cache side-channel attacks. (CVE-2018-3620,
CVE-2018-3646)
* An industry-wide issue was found in the way many modern microprocessor
designs have implemented speculative execution of instructions past bounds
check. The flaw relies on the presence of a precisely-defined instruction
sequence in the privileged code and the fact that memory writes occur to an
address which depends on the untrusted value. Such writes cause an update
into the microprocessor's data cache even for speculatively executed
instructions that never actually commit (retire). As a result, an
unprivileged attacker could use this flaw to influence speculative
execution and/or read privileged memory by conducting targeted cache
side-channel attacks. (CVE-2018-3693)
* A flaw named SegmentSmack was found in the way the Linux kernel handled
specially crafted TCP packets. A remote attacker could use this flaw to
trigger time and calculation expensive calls to tcp_collapse_ofo_queue()
and tcp_prune_ofo_queue() functions by sending specially modified packets
within ongoing TCP sessions which could lead to a CPU saturation and hence
a denial of service on the system. Maintaining the denial of service
condition requires continuous two-way TCP sessions to a reachable open
port, thus the attacks cannot be performed using spoofed IP addresses.
(CVE-2018-5390)
* kernel: crypto: privilege escalation in skcipher_recvmsg function
(CVE-2017-13215)
* kernel: mm: use-after-free in do_get_mempolicy function allows local DoS
or other unspecified impact (CVE-2018-10675)
* kernel: race condition in snd_seq_write() may lead to UAF or OOB access
(CVE-2018-7566)
For more details about the security issue(s), including the impact, a CVSS
score, and other related information, refer to the CVE page(s) listed in
the References section.
Red Hat would like to thank Intel OSSIRT (Intel.com) for reporting
CVE-2018-3620 and CVE-2018-3646; Vladimir Kiriansky (MIT) and Carl
Waldspurger (Carl Waldspurger Consulting) for reporting CVE-2018-3693; and
Juha-Matti Tilli (Aalto University, Department of Communications and
Networking and Nokia Bell Labs) for reporting CVE-2018-5390.
Bug Fix(es):
These updated kernel packages include also numerous bug fixes. Space
precludes documenting all of the bug fixes in this advisory. See the
descriptions in the related Knowledge Article:
https://access.redhat.com/articles/3527791
4. Solution:
For details on how to apply this update, which includes the changes
described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
5. Bugs fixed (https://bugzilla.redhat.com/):
1535173 - CVE-2017-13215 kernel: crypto: privilege escalation in skcipher_recvmsg function
1550142 - CVE-2018-7566 kernel: race condition in snd_seq_write() may lead to UAF or OOB-access
1575065 - CVE-2018-10675 kernel: mm: use-after-free in do_get_mempolicy function allows local DoS or other unspecified impact
1581650 - CVE-2018-3693 Kernel: speculative bounds check bypass store
1585005 - CVE-2018-3646 Kernel: hw: cpu: L1 terminal fault (L1TF)
1601704 - CVE-2018-5390 kernel: TCP segments with random offsets allow a remote denial of service (SegmentSmack)
6. Package List:
Red Hat Enterprise Linux Client (v. 7):
Source:
kernel-3.10.0-862.11.6.el7.src.rpm
noarch:
kernel-abi-whitelists-3.10.0-862.11.6.el7.noarch.rpm
kernel-doc-3.10.0-862.11.6.el7.noarch.rpm
x86_64:
kernel-3.10.0-862.11.6.el7.x86_64.rpm
kernel-debug-3.10.0-862.11.6.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-862.11.6.el7.x86_64.rpm
kernel-debug-devel-3.10.0-862.11.6.el7.x86_64.rpm
kernel-debuginfo-3.10.0-862.11.6.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-862.11.6.el7.x86_64.rpm
kernel-devel-3.10.0-862.11.6.el7.x86_64.rpm
kernel-headers-3.10.0-862.11.6.el7.x86_64.rpm
kernel-tools-3.10.0-862.11.6.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-862.11.6.el7.x86_64.rpm
kernel-tools-libs-3.10.0-862.11.6.el7.x86_64.rpm
perf-3.10.0-862.11.6.el7.x86_64.rpm
perf-debuginfo-3.10.0-862.11.6.el7.x86_64.rpm
python-perf-3.10.0-862.11.6.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-862.11.6.el7.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64:
kernel-debug-debuginfo-3.10.0-862.11.6.el7.x86_64.rpm
kernel-debuginfo-3.10.0-862.11.6.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-862.11.6.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-862.11.6.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-862.11.6.el7.x86_64.rpm
perf-debuginfo-3.10.0-862.11.6.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-862.11.6.el7.x86_64.rpm
Red Hat Enterprise Linux ComputeNode (v. 7):
Source:
kernel-3.10.0-862.11.6.el7.src.rpm
noarch:
kernel-abi-whitelists-3.10.0-862.11.6.el7.noarch.rpm
kernel-doc-3.10.0-862.11.6.el7.noarch.rpm
x86_64:
kernel-3.10.0-862.11.6.el7.x86_64.rpm
kernel-debug-3.10.0-862.11.6.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-862.11.6.el7.x86_64.rpm
kernel-debug-devel-3.10.0-862.11.6.el7.x86_64.rpm
kernel-debuginfo-3.10.0-862.11.6.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-862.11.6.el7.x86_64.rpm
kernel-devel-3.10.0-862.11.6.el7.x86_64.rpm
kernel-headers-3.10.0-862.11.6.el7.x86_64.rpm
kernel-tools-3.10.0-862.11.6.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-862.11.6.el7.x86_64.rpm
kernel-tools-libs-3.10.0-862.11.6.el7.x86_64.rpm
perf-3.10.0-862.11.6.el7.x86_64.rpm
perf-debuginfo-3.10.0-862.11.6.el7.x86_64.rpm
python-perf-3.10.0-862.11.6.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-862.11.6.el7.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional (v. 7):
x86_64:
kernel-debug-debuginfo-3.10.0-862.11.6.el7.x86_64.rpm
kernel-debuginfo-3.10.0-862.11.6.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-862.11.6.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-862.11.6.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-862.11.6.el7.x86_64.rpm
perf-debuginfo-3.10.0-862.11.6.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-862.11.6.el7.x86_64.rpm
Red Hat Enterprise Linux Server (v. 7):
Source:
kernel-3.10.0-862.11.6.el7.src.rpm
noarch:
kernel-abi-whitelists-3.10.0-862.11.6.el7.noarch.rpm
kernel-doc-3.10.0-862.11.6.el7.noarch.rpm
ppc64:
kernel-3.10.0-862.11.6.el7.ppc64.rpm
kernel-bootwrapper-3.10.0-862.11.6.el7.ppc64.rpm
kernel-debug-3.10.0-862.11.6.el7.ppc64.rpm
kernel-debug-debuginfo-3.10.0-862.11.6.el7.ppc64.rpm
kernel-debug-devel-3.10.0-862.11.6.el7.ppc64.rpm
kernel-debuginfo-3.10.0-862.11.6.el7.ppc64.rpm
kernel-debuginfo-common-ppc64-3.10.0-862.11.6.el7.ppc64.rpm
kernel-devel-3.10.0-862.11.6.el7.ppc64.rpm
kernel-headers-3.10.0-862.11.6.el7.ppc64.rpm
kernel-tools-3.10.0-862.11.6.el7.ppc64.rpm
kernel-tools-debuginfo-3.10.0-862.11.6.el7.ppc64.rpm
kernel-tools-libs-3.10.0-862.11.6.el7.ppc64.rpm
perf-3.10.0-862.11.6.el7.ppc64.rpm
perf-debuginfo-3.10.0-862.11.6.el7.ppc64.rpm
python-perf-3.10.0-862.11.6.el7.ppc64.rpm
python-perf-debuginfo-3.10.0-862.11.6.el7.ppc64.rpm
ppc64le:
kernel-3.10.0-862.11.6.el7.ppc64le.rpm
kernel-bootwrapper-3.10.0-862.11.6.el7.ppc64le.rpm
kernel-debug-3.10.0-862.11.6.el7.ppc64le.rpm
kernel-debug-debuginfo-3.10.0-862.11.6.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-862.11.6.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-862.11.6.el7.ppc64le.rpm
kernel-devel-3.10.0-862.11.6.el7.ppc64le.rpm
kernel-headers-3.10.0-862.11.6.el7.ppc64le.rpm
kernel-tools-3.10.0-862.11.6.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-862.11.6.el7.ppc64le.rpm
kernel-tools-libs-3.10.0-862.11.6.el7.ppc64le.rpm
perf-3.10.0-862.11.6.el7.ppc64le.rpm
perf-debuginfo-3.10.0-862.11.6.el7.ppc64le.rpm
python-perf-3.10.0-862.11.6.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-862.11.6.el7.ppc64le.rpm
s390x:
kernel-3.10.0-862.11.6.el7.s390x.rpm
kernel-debug-3.10.0-862.11.6.el7.s390x.rpm
kernel-debug-debuginfo-3.10.0-862.11.6.el7.s390x.rpm
kernel-debug-devel-3.10.0-862.11.6.el7.s390x.rpm
kernel-debuginfo-3.10.0-862.11.6.el7.s390x.rpm
kernel-debuginfo-common-s390x-3.10.0-862.11.6.el7.s390x.rpm
kernel-devel-3.10.0-862.11.6.el7.s390x.rpm
kernel-headers-3.10.0-862.11.6.el7.s390x.rpm
kernel-kdump-3.10.0-862.11.6.el7.s390x.rpm
kernel-kdump-debuginfo-3.10.0-862.11.6.el7.s390x.rpm
kernel-kdump-devel-3.10.0-862.11.6.el7.s390x.rpm
perf-3.10.0-862.11.6.el7.s390x.rpm
perf-debuginfo-3.10.0-862.11.6.el7.s390x.rpm
python-perf-3.10.0-862.11.6.el7.s390x.rpm
python-perf-debuginfo-3.10.0-862.11.6.el7.s390x.rpm
x86_64:
kernel-3.10.0-862.11.6.el7.x86_64.rpm
kernel-debug-3.10.0-862.11.6.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-862.11.6.el7.x86_64.rpm
kernel-debug-devel-3.10.0-862.11.6.el7.x86_64.rpm
kernel-debuginfo-3.10.0-862.11.6.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-862.11.6.el7.x86_64.rpm
kernel-devel-3.10.0-862.11.6.el7.x86_64.rpm
kernel-headers-3.10.0-862.11.6.el7.x86_64.rpm
kernel-tools-3.10.0-862.11.6.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-862.11.6.el7.x86_64.rpm
kernel-tools-libs-3.10.0-862.11.6.el7.x86_64.rpm
perf-3.10.0-862.11.6.el7.x86_64.rpm
perf-debuginfo-3.10.0-862.11.6.el7.x86_64.rpm
python-perf-3.10.0-862.11.6.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-862.11.6.el7.x86_64.rpm
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7):
noarch:
kernel-abi-whitelists-3.10.0-862.11.6.el7.noarch.rpm
kernel-doc-3.10.0-862.11.6.el7.noarch.rpm
ppc64le:
kernel-3.10.0-862.11.6.el7.ppc64le.rpm
kernel-bootwrapper-3.10.0-862.11.6.el7.ppc64le.rpm
kernel-debug-3.10.0-862.11.6.el7.ppc64le.rpm
kernel-debug-debuginfo-3.10.0-862.11.6.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-862.11.6.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-862.11.6.el7.ppc64le.rpm
kernel-devel-3.10.0-862.11.6.el7.ppc64le.rpm
kernel-headers-3.10.0-862.11.6.el7.ppc64le.rpm
kernel-tools-3.10.0-862.11.6.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-862.11.6.el7.ppc64le.rpm
kernel-tools-libs-3.10.0-862.11.6.el7.ppc64le.rpm
perf-3.10.0-862.11.6.el7.ppc64le.rpm
perf-debuginfo-3.10.0-862.11.6.el7.ppc64le.rpm
python-perf-3.10.0-862.11.6.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-862.11.6.el7.ppc64le.rpm
s390x:
kernel-3.10.0-862.11.6.el7.s390x.rpm
kernel-debug-3.10.0-862.11.6.el7.s390x.rpm
kernel-debug-debuginfo-3.10.0-862.11.6.el7.s390x.rpm
kernel-debug-devel-3.10.0-862.11.6.el7.s390x.rpm
kernel-debuginfo-3.10.0-862.11.6.el7.s390x.rpm
kernel-debuginfo-common-s390x-3.10.0-862.11.6.el7.s390x.rpm
kernel-devel-3.10.0-862.11.6.el7.s390x.rpm
kernel-headers-3.10.0-862.11.6.el7.s390x.rpm
kernel-kdump-3.10.0-862.11.6.el7.s390x.rpm
kernel-kdump-debuginfo-3.10.0-862.11.6.el7.s390x.rpm
kernel-kdump-devel-3.10.0-862.11.6.el7.s390x.rpm
perf-3.10.0-862.11.6.el7.s390x.rpm
perf-debuginfo-3.10.0-862.11.6.el7.s390x.rpm
python-perf-3.10.0-862.11.6.el7.s390x.rpm
python-perf-debuginfo-3.10.0-862.11.6.el7.s390x.rpm
Red Hat Enterprise Linux Server Optional (v. 7):
ppc64:
kernel-debug-debuginfo-3.10.0-862.11.6.el7.ppc64.rpm
kernel-debuginfo-3.10.0-862.11.6.el7.ppc64.rpm
kernel-debuginfo-common-ppc64-3.10.0-862.11.6.el7.ppc64.rpm
kernel-tools-debuginfo-3.10.0-862.11.6.el7.ppc64.rpm
kernel-tools-libs-devel-3.10.0-862.11.6.el7.ppc64.rpm
perf-debuginfo-3.10.0-862.11.6.el7.ppc64.rpm
python-perf-debuginfo-3.10.0-862.11.6.el7.ppc64.rpm
ppc64le:
kernel-debug-debuginfo-3.10.0-862.11.6.el7.ppc64le.rpm
kernel-debug-devel-3.10.0-862.11.6.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-862.11.6.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-862.11.6.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-862.11.6.el7.ppc64le.rpm
kernel-tools-libs-devel-3.10.0-862.11.6.el7.ppc64le.rpm
perf-debuginfo-3.10.0-862.11.6.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-862.11.6.el7.ppc64le.rpm
x86_64:
kernel-debug-debuginfo-3.10.0-862.11.6.el7.x86_64.rpm
kernel-debuginfo-3.10.0-862.11.6.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-862.11.6.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-862.11.6.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-862.11.6.el7.x86_64.rpm
perf-debuginfo-3.10.0-862.11.6.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-862.11.6.el7.x86_64.rpm
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7):
noarch:
kernel-doc-3.10.0-862.11.6.el7.noarch.rpm
ppc64le:
kernel-debug-debuginfo-3.10.0-862.11.6.el7.ppc64le.rpm
kernel-debug-devel-3.10.0-862.11.6.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-862.11.6.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-862.11.6.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-862.11.6.el7.ppc64le.rpm
kernel-tools-libs-devel-3.10.0-862.11.6.el7.ppc64le.rpm
perf-debuginfo-3.10.0-862.11.6.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-862.11.6.el7.ppc64le.rpm
Red Hat Enterprise Linux Workstation (v. 7):
Source:
kernel-3.10.0-862.11.6.el7.src.rpm
noarch:
kernel-abi-whitelists-3.10.0-862.11.6.el7.noarch.rpm
kernel-doc-3.10.0-862.11.6.el7.noarch.rpm
x86_64:
kernel-3.10.0-862.11.6.el7.x86_64.rpm
kernel-debug-3.10.0-862.11.6.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-862.11.6.el7.x86_64.rpm
kernel-debug-devel-3.10.0-862.11.6.el7.x86_64.rpm
kernel-debuginfo-3.10.0-862.11.6.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-862.11.6.el7.x86_64.rpm
kernel-devel-3.10.0-862.11.6.el7.x86_64.rpm
kernel-headers-3.10.0-862.11.6.el7.x86_64.rpm
kernel-tools-3.10.0-862.11.6.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-862.11.6.el7.x86_64.rpm
kernel-tools-libs-3.10.0-862.11.6.el7.x86_64.rpm
perf-3.10.0-862.11.6.el7.x86_64.rpm
perf-debuginfo-3.10.0-862.11.6.el7.x86_64.rpm
python-perf-3.10.0-862.11.6.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-862.11.6.el7.x86_64.rpm
Red Hat Enterprise Linux Workstation Optional (v. 7):
x86_64:
kernel-debug-debuginfo-3.10.0-862.11.6.el7.x86_64.rpm
kernel-debuginfo-3.10.0-862.11.6.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-862.11.6.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-862.11.6.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-862.11.6.el7.x86_64.rpm
perf-debuginfo-3.10.0-862.11.6.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-862.11.6.el7.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/
7. References:
https://access.redhat.com/security/cve/CVE-2017-13215
https://access.redhat.com/security/cve/CVE-2018-3620
https://access.redhat.com/security/cve/CVE-2018-3646
https://access.redhat.com/security/cve/CVE-2018-3693
https://access.redhat.com/security/cve/CVE-2018-5390
https://access.redhat.com/security/cve/CVE-2018-7566
https://access.redhat.com/security/cve/CVE-2018-10675
https://access.redhat.com/security/updates/classification/#important
https://access.redhat.com/security/vulnerabilities/L1TF
https://access.redhat.com/articles/3527791
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2018 Red Hat, Inc.
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=====================================================================
Red Hat Security Advisory
Synopsis: Important: kernel security and bug fix update
Advisory ID: RHSA-2018:2387-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2018:2387
Issue date: 2018-08-14
CVE Names: CVE-2018-3620 CVE-2018-3639 CVE-2018-3646
=====================================================================
1. Summary:
An update for kernel is now available for Red Hat Enterprise Linux 7.4
Extended Update Support.
Red Hat Product Security has rated this update as having a security impact
of Important. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE link(s) in the References section.
2. Relevant releases/architectures:
Red Hat Enterprise Linux ComputeNode EUS (v. 7.4) - noarch, x86_64
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.4) - x86_64
Red Hat Enterprise Linux Server EUS (v. 7.4) - noarch, ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Server Optional EUS (v. 7.4) - ppc64, ppc64le, x86_64
3. Description:
The kernel packages contain the Linux kernel, the core of any Linux
operating system.
Security Fix(es):
* Modern operating systems implement virtualization of physical memory to
efficiently use available system resources and provide inter-domain
protection through access control and isolation. The L1TF issue was found
in the way the x86 microprocessor designs have implemented speculative
execution of instructions (a commonly used performance optimisation) in
combination with handling of page-faults caused by terminated virtual to
physical address resolving process. As a result, an unprivileged attacker
could use this flaw to read privileged memory of the kernel or other
processes and/or cross guest/host boundaries to read host memory by
conducting targeted cache side-channel attacks. (CVE-2018-3620,
CVE-2018-3646)
* An industry-wide issue was found in the way many modern microprocessor
designs have implemented speculative execution of Load & Store instructions
(a commonly used performance optimization). It relies on the presence of a
precisely-defined instruction sequence in the privileged code as well as
the fact that memory read from address to which a recent memory write has
occurred may see an older value and subsequently cause an update into the
microprocessor's data cache even for speculatively executed instructions
that never actually commit (retire). As a result, an unprivileged attacker
could use this flaw to read privileged memory by conducting targeted cache
side-channel attacks. (CVE-2018-3639)
Red Hat would like to thank Intel OSSIRT (Intel.com) for reporting
CVE-2018-3620 and CVE-2018-3646 and Ken Johnson (Microsoft Security
Response Center) and Jann Horn (Google Project Zero) for reporting
CVE-2018-3639.
Bug Fix(es):
* Previously, configurations with the little-endian variant of IBM Power
Systems CPU architectures and Hard Disk Drives (HDD) designed according to
Nonvolatile Memory Express (NVMe) open standards, experienced crashes
during shutdown or reboot due to race conditions of CPUs. As a consequence,
the sysfs pseudo file system threw a stack trace report about an attempt to
create a duplicate entry in sysfs. This update modifies the source code so
that the irq_dispose_mapping() function is called first and the
msi_bitmap_free_hwirqs() function is called afterwards. As a result, the
race condition no longer appears in the described scenario. (BZ#1570510)
* When switching from the indirect branch speculation (IBRS) feature to the
retpolines feature, the IBRS state of some CPUs was sometimes not handled
correctly. Consequently, some CPUs were left with the IBRS Model-Specific
Register (MSR) bit set to 1, which could lead to performance issues. With
this update, the underlying source code has been fixed to clear the IBRS
MSR bits correctly, thus fixing the bug. (BZ#1586147)
* During a balloon reset, page pointers were not correctly initialized
after unmapping the memory. Consequently, on the VMware ESXi hypervisor
with "Fault Tolerance" and "ballooning" enabled, the following messages
repeatedly occurred in the kernel log:
[3014611.640148] WARNING: at mm/vmalloc.c:1491 __vunmap+0xd3/0x100()
[3014611.640269] Trying to vfree() nonexistent vm area (ffffc90000697000)
With this update, the underlying source code has been fixed to initialize
page pointers properly. As a result, the mm/vmalloc.c warnings no longer
occur under the described circumstances. (BZ#1595600)
4. Solution:
For details on how to apply this update, which includes the changes
described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
5. Bugs fixed (https://bugzilla.redhat.com/):
1566890 - CVE-2018-3639 hw: cpu: speculative store bypass
1585005 - CVE-2018-3646 Kernel: hw: cpu: L1 terminal fault (L1TF)
6. Package List:
Red Hat Enterprise Linux ComputeNode EUS (v. 7.4):
Source:
kernel-3.10.0-693.37.4.el7.src.rpm
noarch:
kernel-abi-whitelists-3.10.0-693.37.4.el7.noarch.rpm
kernel-doc-3.10.0-693.37.4.el7.noarch.rpm
x86_64:
kernel-3.10.0-693.37.4.el7.x86_64.rpm
kernel-debug-3.10.0-693.37.4.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-693.37.4.el7.x86_64.rpm
kernel-debug-devel-3.10.0-693.37.4.el7.x86_64.rpm
kernel-debuginfo-3.10.0-693.37.4.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-693.37.4.el7.x86_64.rpm
kernel-devel-3.10.0-693.37.4.el7.x86_64.rpm
kernel-headers-3.10.0-693.37.4.el7.x86_64.rpm
kernel-tools-3.10.0-693.37.4.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-693.37.4.el7.x86_64.rpm
kernel-tools-libs-3.10.0-693.37.4.el7.x86_64.rpm
perf-3.10.0-693.37.4.el7.x86_64.rpm
perf-debuginfo-3.10.0-693.37.4.el7.x86_64.rpm
python-perf-3.10.0-693.37.4.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-693.37.4.el7.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.4):
x86_64:
kernel-debug-debuginfo-3.10.0-693.37.4.el7.x86_64.rpm
kernel-debuginfo-3.10.0-693.37.4.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-693.37.4.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-693.37.4.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-693.37.4.el7.x86_64.rpm
perf-debuginfo-3.10.0-693.37.4.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-693.37.4.el7.x86_64.rpm
Red Hat Enterprise Linux Server EUS (v. 7.4):
Source:
kernel-3.10.0-693.37.4.el7.src.rpm
noarch:
kernel-abi-whitelists-3.10.0-693.37.4.el7.noarch.rpm
kernel-doc-3.10.0-693.37.4.el7.noarch.rpm
ppc64:
kernel-3.10.0-693.37.4.el7.ppc64.rpm
kernel-bootwrapper-3.10.0-693.37.4.el7.ppc64.rpm
kernel-debug-3.10.0-693.37.4.el7.ppc64.rpm
kernel-debug-debuginfo-3.10.0-693.37.4.el7.ppc64.rpm
kernel-debug-devel-3.10.0-693.37.4.el7.ppc64.rpm
kernel-debuginfo-3.10.0-693.37.4.el7.ppc64.rpm
kernel-debuginfo-common-ppc64-3.10.0-693.37.4.el7.ppc64.rpm
kernel-devel-3.10.0-693.37.4.el7.ppc64.rpm
kernel-headers-3.10.0-693.37.4.el7.ppc64.rpm
kernel-tools-3.10.0-693.37.4.el7.ppc64.rpm
kernel-tools-debuginfo-3.10.0-693.37.4.el7.ppc64.rpm
kernel-tools-libs-3.10.0-693.37.4.el7.ppc64.rpm
perf-3.10.0-693.37.4.el7.ppc64.rpm
perf-debuginfo-3.10.0-693.37.4.el7.ppc64.rpm
python-perf-3.10.0-693.37.4.el7.ppc64.rpm
python-perf-debuginfo-3.10.0-693.37.4.el7.ppc64.rpm
ppc64le:
kernel-3.10.0-693.37.4.el7.ppc64le.rpm
kernel-bootwrapper-3.10.0-693.37.4.el7.ppc64le.rpm
kernel-debug-3.10.0-693.37.4.el7.ppc64le.rpm
kernel-debug-debuginfo-3.10.0-693.37.4.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-693.37.4.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-693.37.4.el7.ppc64le.rpm
kernel-devel-3.10.0-693.37.4.el7.ppc64le.rpm
kernel-headers-3.10.0-693.37.4.el7.ppc64le.rpm
kernel-tools-3.10.0-693.37.4.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-693.37.4.el7.ppc64le.rpm
kernel-tools-libs-3.10.0-693.37.4.el7.ppc64le.rpm
perf-3.10.0-693.37.4.el7.ppc64le.rpm
perf-debuginfo-3.10.0-693.37.4.el7.ppc64le.rpm
python-perf-3.10.0-693.37.4.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-693.37.4.el7.ppc64le.rpm
s390x:
kernel-3.10.0-693.37.4.el7.s390x.rpm
kernel-debug-3.10.0-693.37.4.el7.s390x.rpm
kernel-debug-debuginfo-3.10.0-693.37.4.el7.s390x.rpm
kernel-debug-devel-3.10.0-693.37.4.el7.s390x.rpm
kernel-debuginfo-3.10.0-693.37.4.el7.s390x.rpm
kernel-debuginfo-common-s390x-3.10.0-693.37.4.el7.s390x.rpm
kernel-devel-3.10.0-693.37.4.el7.s390x.rpm
kernel-headers-3.10.0-693.37.4.el7.s390x.rpm
kernel-kdump-3.10.0-693.37.4.el7.s390x.rpm
kernel-kdump-debuginfo-3.10.0-693.37.4.el7.s390x.rpm
kernel-kdump-devel-3.10.0-693.37.4.el7.s390x.rpm
perf-3.10.0-693.37.4.el7.s390x.rpm
perf-debuginfo-3.10.0-693.37.4.el7.s390x.rpm
python-perf-3.10.0-693.37.4.el7.s390x.rpm
python-perf-debuginfo-3.10.0-693.37.4.el7.s390x.rpm
x86_64:
kernel-3.10.0-693.37.4.el7.x86_64.rpm
kernel-debug-3.10.0-693.37.4.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-693.37.4.el7.x86_64.rpm
kernel-debug-devel-3.10.0-693.37.4.el7.x86_64.rpm
kernel-debuginfo-3.10.0-693.37.4.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-693.37.4.el7.x86_64.rpm
kernel-devel-3.10.0-693.37.4.el7.x86_64.rpm
kernel-headers-3.10.0-693.37.4.el7.x86_64.rpm
kernel-tools-3.10.0-693.37.4.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-693.37.4.el7.x86_64.rpm
kernel-tools-libs-3.10.0-693.37.4.el7.x86_64.rpm
perf-3.10.0-693.37.4.el7.x86_64.rpm
perf-debuginfo-3.10.0-693.37.4.el7.x86_64.rpm
python-perf-3.10.0-693.37.4.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-693.37.4.el7.x86_64.rpm
Red Hat Enterprise Linux Server Optional EUS (v. 7.4):
ppc64:
kernel-debug-debuginfo-3.10.0-693.37.4.el7.ppc64.rpm
kernel-debuginfo-3.10.0-693.37.4.el7.ppc64.rpm
kernel-debuginfo-common-ppc64-3.10.0-693.37.4.el7.ppc64.rpm
kernel-tools-debuginfo-3.10.0-693.37.4.el7.ppc64.rpm
kernel-tools-libs-devel-3.10.0-693.37.4.el7.ppc64.rpm
perf-debuginfo-3.10.0-693.37.4.el7.ppc64.rpm
python-perf-debuginfo-3.10.0-693.37.4.el7.ppc64.rpm
ppc64le:
kernel-debug-debuginfo-3.10.0-693.37.4.el7.ppc64le.rpm
kernel-debug-devel-3.10.0-693.37.4.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-693.37.4.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-693.37.4.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-693.37.4.el7.ppc64le.rpm
kernel-tools-libs-devel-3.10.0-693.37.4.el7.ppc64le.rpm
perf-debuginfo-3.10.0-693.37.4.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-693.37.4.el7.ppc64le.rpm
x86_64:
kernel-debug-debuginfo-3.10.0-693.37.4.el7.x86_64.rpm
kernel-debuginfo-3.10.0-693.37.4.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-693.37.4.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-693.37.4.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-693.37.4.el7.x86_64.rpm
perf-debuginfo-3.10.0-693.37.4.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-693.37.4.el7.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/
7. References:
https://access.redhat.com/security/cve/CVE-2018-3620
https://access.redhat.com/security/cve/CVE-2018-3639
https://access.redhat.com/security/cve/CVE-2018-3646
https://access.redhat.com/security/updates/classification/#important
https://access.redhat.com/security/vulnerabilities/L1TF
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2018 Red Hat, Inc.
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=====================================================================
Red Hat Security Advisory
Synopsis: Important: kernel security and bug fix update
Advisory ID: RHSA-2018:2388-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2018:2388
Issue date: 2018-08-14
CVE Names: CVE-2018-3620 CVE-2018-3646
=====================================================================
1. Summary:
An update for kernel is now available for Red Hat Enterprise Linux 7.3
Extended Update Support.
Red Hat Product Security has rated this update as having a security impact
of Important. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE link(s) in the References section.
2. Relevant releases/architectures:
Red Hat Enterprise Linux ComputeNode EUS (v. 7.3) - noarch, x86_64
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.3) - x86_64
Red Hat Enterprise Linux Server EUS (v. 7.3) - noarch, ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Server Optional EUS (v. 7.3) - ppc64, ppc64le, x86_64
3. Description:
The kernel packages contain the Linux kernel, the core of any Linux
operating system.
Security Fix(es):
* Modern operating systems implement virtualization of physical memory to
efficiently use available system resources and provide inter-domain
protection through access control and isolation. The L1TF issue was found
in the way the x86 microprocessor designs have implemented speculative
execution of instructions (a commonly used performance optimisation) in
combination with handling of page-faults caused by terminated virtual to
physical address resolving process. As a result, an unprivileged attacker
could use this flaw to read privileged memory of the kernel or other
processes and/or cross guest/host boundaries to read host memory by
conducting targeted cache side-channel attacks. (CVE-2018-3620,
CVE-2018-3646)
Red Hat would like to thank Intel OSSIRT (Intel.com) for reporting these
issues.
Bug Fix(es):
* Due to a bug in a CPU's speculative execution engine, the CPU could
previously leak data from other processes on the system, including
passwords, encryption keys, or other sensitive information. With this
update, the kernel build requirements have been updated to the GNU Compiler
Collection (GCC) compiler version that has the support for Expoline for IBM
z Systems. As a result, data leak no longer occurs under the described
circumstances. (BZ#1577761)
4. Solution:
For details on how to apply this update, which includes the changes
described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
5. Bugs fixed (https://bugzilla.redhat.com/):
1585005 - CVE-2018-3646 Kernel: hw: cpu: L1 terminal fault (L1TF)
6. Package List:
Red Hat Enterprise Linux ComputeNode EUS (v. 7.3):
Source:
kernel-3.10.0-514.55.4.el7.src.rpm
noarch:
kernel-abi-whitelists-3.10.0-514.55.4.el7.noarch.rpm
kernel-doc-3.10.0-514.55.4.el7.noarch.rpm
x86_64:
kernel-3.10.0-514.55.4.el7.x86_64.rpm
kernel-debug-3.10.0-514.55.4.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-514.55.4.el7.x86_64.rpm
kernel-debug-devel-3.10.0-514.55.4.el7.x86_64.rpm
kernel-debuginfo-3.10.0-514.55.4.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-514.55.4.el7.x86_64.rpm
kernel-devel-3.10.0-514.55.4.el7.x86_64.rpm
kernel-headers-3.10.0-514.55.4.el7.x86_64.rpm
kernel-tools-3.10.0-514.55.4.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-514.55.4.el7.x86_64.rpm
kernel-tools-libs-3.10.0-514.55.4.el7.x86_64.rpm
perf-3.10.0-514.55.4.el7.x86_64.rpm
perf-debuginfo-3.10.0-514.55.4.el7.x86_64.rpm
python-perf-3.10.0-514.55.4.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-514.55.4.el7.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.3):
x86_64:
kernel-debug-debuginfo-3.10.0-514.55.4.el7.x86_64.rpm
kernel-debuginfo-3.10.0-514.55.4.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-514.55.4.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-514.55.4.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-514.55.4.el7.x86_64.rpm
perf-debuginfo-3.10.0-514.55.4.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-514.55.4.el7.x86_64.rpm
Red Hat Enterprise Linux Server EUS (v. 7.3):
Source:
kernel-3.10.0-514.55.4.el7.src.rpm
noarch:
kernel-abi-whitelists-3.10.0-514.55.4.el7.noarch.rpm
kernel-doc-3.10.0-514.55.4.el7.noarch.rpm
ppc64:
kernel-3.10.0-514.55.4.el7.ppc64.rpm
kernel-bootwrapper-3.10.0-514.55.4.el7.ppc64.rpm
kernel-debug-3.10.0-514.55.4.el7.ppc64.rpm
kernel-debug-debuginfo-3.10.0-514.55.4.el7.ppc64.rpm
kernel-debug-devel-3.10.0-514.55.4.el7.ppc64.rpm
kernel-debuginfo-3.10.0-514.55.4.el7.ppc64.rpm
kernel-debuginfo-common-ppc64-3.10.0-514.55.4.el7.ppc64.rpm
kernel-devel-3.10.0-514.55.4.el7.ppc64.rpm
kernel-headers-3.10.0-514.55.4.el7.ppc64.rpm
kernel-tools-3.10.0-514.55.4.el7.ppc64.rpm
kernel-tools-debuginfo-3.10.0-514.55.4.el7.ppc64.rpm
kernel-tools-libs-3.10.0-514.55.4.el7.ppc64.rpm
perf-3.10.0-514.55.4.el7.ppc64.rpm
perf-debuginfo-3.10.0-514.55.4.el7.ppc64.rpm
python-perf-3.10.0-514.55.4.el7.ppc64.rpm
python-perf-debuginfo-3.10.0-514.55.4.el7.ppc64.rpm
ppc64le:
kernel-3.10.0-514.55.4.el7.ppc64le.rpm
kernel-bootwrapper-3.10.0-514.55.4.el7.ppc64le.rpm
kernel-debug-3.10.0-514.55.4.el7.ppc64le.rpm
kernel-debug-debuginfo-3.10.0-514.55.4.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-514.55.4.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-514.55.4.el7.ppc64le.rpm
kernel-devel-3.10.0-514.55.4.el7.ppc64le.rpm
kernel-headers-3.10.0-514.55.4.el7.ppc64le.rpm
kernel-tools-3.10.0-514.55.4.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-514.55.4.el7.ppc64le.rpm
kernel-tools-libs-3.10.0-514.55.4.el7.ppc64le.rpm
perf-3.10.0-514.55.4.el7.ppc64le.rpm
perf-debuginfo-3.10.0-514.55.4.el7.ppc64le.rpm
python-perf-3.10.0-514.55.4.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-514.55.4.el7.ppc64le.rpm
s390x:
kernel-3.10.0-514.55.4.el7.s390x.rpm
kernel-debug-3.10.0-514.55.4.el7.s390x.rpm
kernel-debug-debuginfo-3.10.0-514.55.4.el7.s390x.rpm
kernel-debug-devel-3.10.0-514.55.4.el7.s390x.rpm
kernel-debuginfo-3.10.0-514.55.4.el7.s390x.rpm
kernel-debuginfo-common-s390x-3.10.0-514.55.4.el7.s390x.rpm
kernel-devel-3.10.0-514.55.4.el7.s390x.rpm
kernel-headers-3.10.0-514.55.4.el7.s390x.rpm
kernel-kdump-3.10.0-514.55.4.el7.s390x.rpm
kernel-kdump-debuginfo-3.10.0-514.55.4.el7.s390x.rpm
kernel-kdump-devel-3.10.0-514.55.4.el7.s390x.rpm
perf-3.10.0-514.55.4.el7.s390x.rpm
perf-debuginfo-3.10.0-514.55.4.el7.s390x.rpm
python-perf-3.10.0-514.55.4.el7.s390x.rpm
python-perf-debuginfo-3.10.0-514.55.4.el7.s390x.rpm
x86_64:
kernel-3.10.0-514.55.4.el7.x86_64.rpm
kernel-debug-3.10.0-514.55.4.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-514.55.4.el7.x86_64.rpm
kernel-debug-devel-3.10.0-514.55.4.el7.x86_64.rpm
kernel-debuginfo-3.10.0-514.55.4.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-514.55.4.el7.x86_64.rpm
kernel-devel-3.10.0-514.55.4.el7.x86_64.rpm
kernel-headers-3.10.0-514.55.4.el7.x86_64.rpm
kernel-tools-3.10.0-514.55.4.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-514.55.4.el7.x86_64.rpm
kernel-tools-libs-3.10.0-514.55.4.el7.x86_64.rpm
perf-3.10.0-514.55.4.el7.x86_64.rpm
perf-debuginfo-3.10.0-514.55.4.el7.x86_64.rpm
python-perf-3.10.0-514.55.4.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-514.55.4.el7.x86_64.rpm
Red Hat Enterprise Linux Server Optional EUS (v. 7.3):
ppc64:
kernel-debug-debuginfo-3.10.0-514.55.4.el7.ppc64.rpm
kernel-debuginfo-3.10.0-514.55.4.el7.ppc64.rpm
kernel-debuginfo-common-ppc64-3.10.0-514.55.4.el7.ppc64.rpm
kernel-tools-debuginfo-3.10.0-514.55.4.el7.ppc64.rpm
kernel-tools-libs-devel-3.10.0-514.55.4.el7.ppc64.rpm
perf-debuginfo-3.10.0-514.55.4.el7.ppc64.rpm
python-perf-debuginfo-3.10.0-514.55.4.el7.ppc64.rpm
ppc64le:
kernel-debug-debuginfo-3.10.0-514.55.4.el7.ppc64le.rpm
kernel-debug-devel-3.10.0-514.55.4.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-514.55.4.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-514.55.4.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-514.55.4.el7.ppc64le.rpm
kernel-tools-libs-devel-3.10.0-514.55.4.el7.ppc64le.rpm
perf-debuginfo-3.10.0-514.55.4.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-514.55.4.el7.ppc64le.rpm
x86_64:
kernel-debug-debuginfo-3.10.0-514.55.4.el7.x86_64.rpm
kernel-debuginfo-3.10.0-514.55.4.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-514.55.4.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-514.55.4.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-514.55.4.el7.x86_64.rpm
perf-debuginfo-3.10.0-514.55.4.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-514.55.4.el7.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/
7. References:
https://access.redhat.com/security/cve/CVE-2018-3620
https://access.redhat.com/security/cve/CVE-2018-3646
https://access.redhat.com/security/updates/classification/#important
https://access.redhat.com/security/vulnerabilities/L1TF
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2018 Red Hat, Inc.
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- ----------------------------------------------------------------
- -----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
=====================================================================
Red Hat Security Advisory
Synopsis: Important: kernel security update
Advisory ID: RHSA-2018:2389-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2018:2389
Issue date: 2018-08-14
CVE Names: CVE-2018-3620 CVE-2018-3646
=====================================================================
1. Summary:
An update for kernel is now available for Red Hat Enterprise Linux 7.2
Advanced Update Support, Red Hat Enterprise Linux 7.2 Telco Extended Update
Support, and Red Hat Enterprise Linux 7.2 Update Services for SAP
Solutions.
Red Hat Product Security has rated this update as having a security impact
of Important. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE link(s) in the References section.
2. Relevant releases/architectures:
Red Hat Enterprise Linux Server AUS (v. 7.2) - noarch, x86_64
Red Hat Enterprise Linux Server E4S (v. 7.2) - noarch, ppc64le, x86_64
Red Hat Enterprise Linux Server Optional AUS (v. 7.2) - x86_64
Red Hat Enterprise Linux Server Optional E4S (v. 7.2) - ppc64le, x86_64
Red Hat Enterprise Linux Server Optional TUS (v. 7.2) - x86_64
Red Hat Enterprise Linux Server TUS (v. 7.2) - noarch, x86_64
3. Description:
The kernel packages contain the Linux kernel, the core of any Linux
operating system.
Security Fix(es):
* Modern operating systems implement virtualization of physical memory to
efficiently use available system resources and provide inter-domain
protection through access control and isolation. The L1TF issue was found
in the way the x86 microprocessor designs have implemented speculative
execution of instructions (a commonly used performance optimisation) in
combination with handling of page-faults caused by terminated virtual to
physical address resolving process. As a result, an unprivileged attacker
could use this flaw to read privileged memory of the kernel or other
processes and/or cross guest/host boundaries to read host memory by
conducting targeted cache side-channel attacks. (CVE-2018-3620,
CVE-2018-3646)
Red Hat would like to thank Intel OSSIRT (Intel.com) for reporting these
issues.
4. Solution:
For details on how to apply this update, which includes the changes
described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
5. Bugs fixed (https://bugzilla.redhat.com/):
1585005 - CVE-2018-3646 Kernel: hw: cpu: L1 terminal fault (L1TF)
6. Package List:
Red Hat Enterprise Linux Server AUS (v. 7.2):
Source:
kernel-3.10.0-327.71.4.el7.src.rpm
noarch:
kernel-abi-whitelists-3.10.0-327.71.4.el7.noarch.rpm
kernel-doc-3.10.0-327.71.4.el7.noarch.rpm
x86_64:
kernel-3.10.0-327.71.4.el7.x86_64.rpm
kernel-debug-3.10.0-327.71.4.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-327.71.4.el7.x86_64.rpm
kernel-debug-devel-3.10.0-327.71.4.el7.x86_64.rpm
kernel-debuginfo-3.10.0-327.71.4.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-327.71.4.el7.x86_64.rpm
kernel-devel-3.10.0-327.71.4.el7.x86_64.rpm
kernel-headers-3.10.0-327.71.4.el7.x86_64.rpm
kernel-tools-3.10.0-327.71.4.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-327.71.4.el7.x86_64.rpm
kernel-tools-libs-3.10.0-327.71.4.el7.x86_64.rpm
perf-3.10.0-327.71.4.el7.x86_64.rpm
perf-debuginfo-3.10.0-327.71.4.el7.x86_64.rpm
python-perf-3.10.0-327.71.4.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-327.71.4.el7.x86_64.rpm
Red Hat Enterprise Linux Server E4S (v. 7.2):
Source:
kernel-3.10.0-327.71.4.el7.src.rpm
noarch:
kernel-abi-whitelists-3.10.0-327.71.4.el7.noarch.rpm
kernel-doc-3.10.0-327.71.4.el7.noarch.rpm
ppc64le:
kernel-3.10.0-327.71.4.el7.ppc64le.rpm
kernel-bootwrapper-3.10.0-327.71.4.el7.ppc64le.rpm
kernel-debug-3.10.0-327.71.4.el7.ppc64le.rpm
kernel-debug-debuginfo-3.10.0-327.71.4.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-327.71.4.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-327.71.4.el7.ppc64le.rpm
kernel-devel-3.10.0-327.71.4.el7.ppc64le.rpm
kernel-headers-3.10.0-327.71.4.el7.ppc64le.rpm
kernel-tools-3.10.0-327.71.4.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-327.71.4.el7.ppc64le.rpm
kernel-tools-libs-3.10.0-327.71.4.el7.ppc64le.rpm
perf-3.10.0-327.71.4.el7.ppc64le.rpm
perf-debuginfo-3.10.0-327.71.4.el7.ppc64le.rpm
python-perf-3.10.0-327.71.4.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-327.71.4.el7.ppc64le.rpm
x86_64:
kernel-3.10.0-327.71.4.el7.x86_64.rpm
kernel-debug-3.10.0-327.71.4.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-327.71.4.el7.x86_64.rpm
kernel-debug-devel-3.10.0-327.71.4.el7.x86_64.rpm
kernel-debuginfo-3.10.0-327.71.4.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-327.71.4.el7.x86_64.rpm
kernel-devel-3.10.0-327.71.4.el7.x86_64.rpm
kernel-headers-3.10.0-327.71.4.el7.x86_64.rpm
kernel-tools-3.10.0-327.71.4.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-327.71.4.el7.x86_64.rpm
kernel-tools-libs-3.10.0-327.71.4.el7.x86_64.rpm
perf-3.10.0-327.71.4.el7.x86_64.rpm
perf-debuginfo-3.10.0-327.71.4.el7.x86_64.rpm
python-perf-3.10.0-327.71.4.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-327.71.4.el7.x86_64.rpm
Red Hat Enterprise Linux Server TUS (v. 7.2):
Source:
kernel-3.10.0-327.71.4.el7.src.rpm
noarch:
kernel-abi-whitelists-3.10.0-327.71.4.el7.noarch.rpm
kernel-doc-3.10.0-327.71.4.el7.noarch.rpm
x86_64:
kernel-3.10.0-327.71.4.el7.x86_64.rpm
kernel-debug-3.10.0-327.71.4.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-327.71.4.el7.x86_64.rpm
kernel-debug-devel-3.10.0-327.71.4.el7.x86_64.rpm
kernel-debuginfo-3.10.0-327.71.4.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-327.71.4.el7.x86_64.rpm
kernel-devel-3.10.0-327.71.4.el7.x86_64.rpm
kernel-headers-3.10.0-327.71.4.el7.x86_64.rpm
kernel-tools-3.10.0-327.71.4.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-327.71.4.el7.x86_64.rpm
kernel-tools-libs-3.10.0-327.71.4.el7.x86_64.rpm
perf-3.10.0-327.71.4.el7.x86_64.rpm
perf-debuginfo-3.10.0-327.71.4.el7.x86_64.rpm
python-perf-3.10.0-327.71.4.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-327.71.4.el7.x86_64.rpm
Red Hat Enterprise Linux Server Optional AUS (v. 7.2):
x86_64:
kernel-debug-debuginfo-3.10.0-327.71.4.el7.x86_64.rpm
kernel-debuginfo-3.10.0-327.71.4.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-327.71.4.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-327.71.4.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-327.71.4.el7.x86_64.rpm
perf-debuginfo-3.10.0-327.71.4.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-327.71.4.el7.x86_64.rpm
Red Hat Enterprise Linux Server Optional E4S (v. 7.2):
ppc64le:
kernel-debug-debuginfo-3.10.0-327.71.4.el7.ppc64le.rpm
kernel-debug-devel-3.10.0-327.71.4.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-327.71.4.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-327.71.4.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-327.71.4.el7.ppc64le.rpm
kernel-tools-libs-devel-3.10.0-327.71.4.el7.ppc64le.rpm
perf-debuginfo-3.10.0-327.71.4.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-327.71.4.el7.ppc64le.rpm
x86_64:
kernel-debug-debuginfo-3.10.0-327.71.4.el7.x86_64.rpm
kernel-debuginfo-3.10.0-327.71.4.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-327.71.4.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-327.71.4.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-327.71.4.el7.x86_64.rpm
perf-debuginfo-3.10.0-327.71.4.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-327.71.4.el7.x86_64.rpm
Red Hat Enterprise Linux Server Optional TUS (v. 7.2):
x86_64:
kernel-debug-debuginfo-3.10.0-327.71.4.el7.x86_64.rpm
kernel-debuginfo-3.10.0-327.71.4.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-327.71.4.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-327.71.4.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-327.71.4.el7.x86_64.rpm
perf-debuginfo-3.10.0-327.71.4.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-327.71.4.el7.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/
7. References:
https://access.redhat.com/security/cve/CVE-2018-3620
https://access.redhat.com/security/cve/CVE-2018-3646
https://access.redhat.com/security/updates/classification/#important
https://access.redhat.com/security/vulnerabilities/L1TF
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2018 Red Hat, Inc.
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Hash: SHA256
=====================================================================
Red Hat Security Advisory
Synopsis: Important: kernel-rt security and bug fix update
Advisory ID: RHSA-2018:2395-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2018:2395
Issue date: 2018-08-14
CVE Names: CVE-2017-13215 CVE-2018-3620 CVE-2018-3646
CVE-2018-3693 CVE-2018-5390 CVE-2018-7566
CVE-2018-10675
=====================================================================
1. Summary:
An update for kernel-rt is now available for Red Hat Enterprise Linux 7.
Red Hat Product Security has rated this update as having a security impact
of Important. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE link(s) in the References section.
2. Relevant releases/architectures:
Red Hat Enterprise Linux Realtime (v. 7) - noarch, x86_64
Red Hat Enterprise Linux for Real Time for NFV (v. 7) - noarch, x86_64
3. Description:
The kernel-rt packages provide the Real Time Linux Kernel, which enables
fine-tuning for systems with extremely high determinism requirements.
Security Fix(es):
* Modern operating systems implement virtualization of physical memory to
efficiently use available system resources and provide inter-domain
protection through access control and isolation. The L1TF issue was found
in the way the x86 microprocessor designs have implemented speculative
execution of instructions (a commonly used performance optimisation) in
combination with handling of page-faults caused by terminated virtual to
physical address resolving process. As a result, an unprivileged attacker
could use this flaw to read privileged memory of the kernel or other
processes and/or cross guest/host boundaries to read host memory by
conducting targeted cache side-channel attacks. (CVE-2018-3620,
CVE-2018-3646)
* An industry-wide issue was found in the way many modern microprocessor
designs have implemented speculative execution of instructions past bounds
check. The flaw relies on the presence of a precisely-defined instruction
sequence in the privileged code and the fact that memory writes occur to an
address which depends on the untrusted value. Such writes cause an update
into the microprocessor's data cache even for speculatively executed
instructions that never actually commit (retire). As a result, an
unprivileged attacker could use this flaw to influence speculative
execution and/or read privileged memory by conducting targeted cache
side-channel attacks. (CVE-2018-3693)
* A flaw named SegmentSmack was found in the way the Linux kernel handled
specially crafted TCP packets. A remote attacker could use this flaw to
trigger time and calculation expensive calls to tcp_collapse_ofo_queue()
and tcp_prune_ofo_queue() functions by sending specially modified packets
within ongoing TCP sessions which could lead to a CPU saturation and hence
a denial of service on the system. Maintaining the denial of service
condition requires continuous two-way TCP sessions to a reachable open
port, thus the attacks cannot be performed using spoofed IP addresses.
(CVE-2018-5390)
* kernel: crypto: privilege escalation in skcipher_recvmsg function
(CVE-2017-13215)
* kernel: mm: use-after-free in do_get_mempolicy function allows local DoS
or other unspecified impact (CVE-2018-10675)
* kernel: race condition in snd_seq_write() may lead to UAF or OOB access
(CVE-2018-7566)
For more details about the security issue(s), including the impact, a CVSS
score, and other related information, refer to the CVE page(s) listed in
the References section.
Red Hat would like to thank Intel OSSIRT (Intel.com) for reporting
CVE-2018-3620 and CVE-2018-3646; Vladimir Kiriansky (MIT) and Carl
Waldspurger (Carl Waldspurger Consulting) for reporting CVE-2018-3693; and
Juha-Matti Tilli (Aalto University, Department of Communications and
Networking and Nokia Bell Labs) for reporting CVE-2018-5390.
Bug Fix(es):
* The kernel-rt packages have been upgraded to the 3.10.0-862.10.2 source
tree, which provides a number of bug fixes over the previous version.
(BZ#1594915)
4. Solution:
For details on how to apply this update, which includes the changes
described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
5. Bugs fixed (https://bugzilla.redhat.com/):
1535173 - CVE-2017-13215 kernel: crypto: privilege escalation in skcipher_recvmsg function
1550142 - CVE-2018-7566 kernel: race condition in snd_seq_write() may lead to UAF or OOB-access
1575065 - CVE-2018-10675 kernel: mm: use-after-free in do_get_mempolicy function allows local DoS or other unspecified impact
1581650 - CVE-2018-3693 Kernel: speculative bounds check bypass store
1585005 - CVE-2018-3646 Kernel: hw: cpu: L1 terminal fault (L1TF)
1594915 - kernel-rt: update to the RHEL7.5.z batch#3 source tree
1601704 - CVE-2018-5390 kernel: TCP segments with random offsets allow a remote denial of service (SegmentSmack)
6. Package List:
Red Hat Enterprise Linux for Real Time for NFV (v. 7):
Source:
kernel-rt-3.10.0-862.11.6.rt56.819.el7.src.rpm
noarch:
kernel-rt-doc-3.10.0-862.11.6.rt56.819.el7.noarch.rpm
x86_64:
kernel-rt-3.10.0-862.11.6.rt56.819.el7.x86_64.rpm
kernel-rt-debug-3.10.0-862.11.6.rt56.819.el7.x86_64.rpm
kernel-rt-debug-debuginfo-3.10.0-862.11.6.rt56.819.el7.x86_64.rpm
kernel-rt-debug-devel-3.10.0-862.11.6.rt56.819.el7.x86_64.rpm
kernel-rt-debug-kvm-3.10.0-862.11.6.rt56.819.el7.x86_64.rpm
kernel-rt-debug-kvm-debuginfo-3.10.0-862.11.6.rt56.819.el7.x86_64.rpm
kernel-rt-debuginfo-3.10.0-862.11.6.rt56.819.el7.x86_64.rpm
kernel-rt-debuginfo-common-x86_64-3.10.0-862.11.6.rt56.819.el7.x86_64.rpm
kernel-rt-devel-3.10.0-862.11.6.rt56.819.el7.x86_64.rpm
kernel-rt-kvm-3.10.0-862.11.6.rt56.819.el7.x86_64.rpm
kernel-rt-kvm-debuginfo-3.10.0-862.11.6.rt56.819.el7.x86_64.rpm
kernel-rt-trace-3.10.0-862.11.6.rt56.819.el7.x86_64.rpm
kernel-rt-trace-debuginfo-3.10.0-862.11.6.rt56.819.el7.x86_64.rpm
kernel-rt-trace-devel-3.10.0-862.11.6.rt56.819.el7.x86_64.rpm
kernel-rt-trace-kvm-3.10.0-862.11.6.rt56.819.el7.x86_64.rpm
kernel-rt-trace-kvm-debuginfo-3.10.0-862.11.6.rt56.819.el7.x86_64.rpm
Red Hat Enterprise Linux Realtime (v. 7):
Source:
kernel-rt-3.10.0-862.11.6.rt56.819.el7.src.rpm
noarch:
kernel-rt-doc-3.10.0-862.11.6.rt56.819.el7.noarch.rpm
x86_64:
kernel-rt-3.10.0-862.11.6.rt56.819.el7.x86_64.rpm
kernel-rt-debug-3.10.0-862.11.6.rt56.819.el7.x86_64.rpm
kernel-rt-debug-devel-3.10.0-862.11.6.rt56.819.el7.x86_64.rpm
kernel-rt-devel-3.10.0-862.11.6.rt56.819.el7.x86_64.rpm
kernel-rt-trace-3.10.0-862.11.6.rt56.819.el7.x86_64.rpm
kernel-rt-trace-devel-3.10.0-862.11.6.rt56.819.el7.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/
7. References:
https://access.redhat.com/security/cve/CVE-2017-13215
https://access.redhat.com/security/cve/CVE-2018-3620
https://access.redhat.com/security/cve/CVE-2018-3646
https://access.redhat.com/security/cve/CVE-2018-3693
https://access.redhat.com/security/cve/CVE-2018-5390
https://access.redhat.com/security/cve/CVE-2018-7566
https://access.redhat.com/security/cve/CVE-2018-10675
https://access.redhat.com/security/updates/classification/#important
https://access.redhat.com/security/vulnerabilities/L1TF
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2018 Red Hat, Inc.
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