Protect yourself against future threats.
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===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2020.0953
kernel security, bug fix, and enhancement update
18 March 2020
===========================================================================
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: Reduced Security -- Existing Account
Access Confidential Data -- Existing Account
Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2019-19338 CVE-2019-17666 CVE-2019-11487
Original Bulletin:
https://access.redhat.com/errata/RHSA-2020:0834
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=====================================================================
Red Hat Security Advisory
Synopsis: Important: kernel security, bug fix, and enhancement update
Advisory ID: RHSA-2020:0834-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:0834
Issue date: 2020-03-17
CVE Names: CVE-2019-11487 CVE-2019-17666 CVE-2019-19338
=====================================================================
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
3. Description:
The kernel packages contain the Linux kernel, the core of any Linux
operating system.
Security Fix(es):
* kernel: Count overflow in FUSE request leading to use-after-free issues.
(CVE-2019-11487)
* kernel: rtl_p2p_noa_ie in drivers/net/wireless/realtek/rtlwifi/ps.c in
the Linux kernel lacks a certain upper-bound check, leading to a buffer
overflow (CVE-2019-17666)
* Kernel: KVM: export MSR_IA32_TSX_CTRL to guest - incomplete fix for TAA
(CVE-2019-11135) (CVE-2019-19338)
For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE
page(s) listed in the References section.
Bug Fix(es):
* RHEL7.7 - default idle mishandles lazy irq state (BZ#1767620)
* Sanitize MM backported code for RHEL7 (BZ#1768386)
* A bio with a flush and write to an md device can be lost and never
complete by the md layer (BZ#1773482)
* [FJ7.7 Bug]: [REG] Read from /proc/net/if_inet6 never stop. (BZ#1778084)
* RHEL7.7 - zfcp: fix reaction on bit error threshold notification
(BZ#1778691)
* RHEL7.7 Snapshot3 - Kernel Panic when running LTP mm test on s390x
(BZ#1780035)
* Leak in cachefiles driver (BZ#1780149)
* VFS: Busy inodes after unmount of loop0 when encountering duplicate
directory inodes (BZ#1781159)
* Allocation failure in md's r10buf_pool_alloc function leads to a crash
from accessing uninitialized pointers (BZ#1781584)
* [Hyper-V][RHEL7.6]Hyper-V guest waiting indefinitely for RCU callback
when removing a mem cgroup (BZ#1783177)
* A bnx2fc abort attempt doesn't timeout from miscalculation causing a huge
timeout value (BZ#1784824)
* scsi: libiscsi: fall back to sendmsg for slab pages (BZ#1784826)
* RHEL7.7 - kernel: avoid cpu yield in SMT environment (BZ#1787558)
* RHEL7.6 - kernel: jump label transformation performance (BZ#1787559)
* drm radeon power management warning on VERDE cards (BZ#1789744)
* Duplicate enum value in include/linux/blk_types.h (BZ#1791781)
* [HPE 7.7 Bug] hpsa: bug fix for reset issue (BZ#1791782)
* System Crash on vport creation (NPIV on FCoE) (BZ#1791825)
* [Hyper-V][RHEL 7.8] Four Mellanox Patches needed for kernels that have
that have SRIOV (BZ#1792371)
* WARNING: CPU: 7 PID: 2049 at mm/slub.c:2296 ___slab_alloc+0x508/0x520
(BZ#1793086)
* fio with ioengine=pmemblk on fsdax failed (BZ#1793088)
* [HPE 7.7 Bug] hpsa: bug fixes (BZ#1793579)
* perf top -p PID does not show anything (BZ#1793581)
* Delay in RT task scheduled. Incorrect nr_scheduled value. (BZ#1796261)
* A directory on a gfs2 filesystem appears corrupt on nodeB after nodeA
renames the directory (BZ#1796431)
* ixgbevf interface goes down on hypervisor and causes outage (BZ#1796798)
* Can't enable virt-ssbd on some AMD hosts (BZ#1797511)
* [HPEMC 7.8 BUG] x86/boot/64: Avoid mapping reserved ranges in early page
tables (BZ#1798163)
Enhancement(s):
* scsi: qla2xxx: Fix panic in qla_dfs_tgt_counters_show' (BZ#1791595)
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/):
1703063 - CVE-2019-11487 kernel: Count overflow in FUSE request leading to use-after-free issues.
1763690 - CVE-2019-17666 kernel: rtl_p2p_noa_ie in drivers/net/wireless/realtek/rtlwifi/ps.c in the Linux kernel lacks a certain upper-bound check, leading to a buffer overflow
1781514 - CVE-2019-19338 Kernel: KVM: export MSR_IA32_TSX_CTRL to guest - incomplete fix for TAA (CVE-2019-11135)
6. Package List:
Red Hat Enterprise Linux Client (v. 7):
Source:
kernel-3.10.0-1062.18.1.el7.src.rpm
noarch:
kernel-abi-whitelists-3.10.0-1062.18.1.el7.noarch.rpm
kernel-doc-3.10.0-1062.18.1.el7.noarch.rpm
x86_64:
bpftool-3.10.0-1062.18.1.el7.x86_64.rpm
bpftool-debuginfo-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-debug-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-devel-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-headers-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-tools-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-1062.18.1.el7.x86_64.rpm
perf-3.10.0-1062.18.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-1062.18.1.el7.x86_64.rpm
python-perf-3.10.0-1062.18.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-1062.18.1.el7.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64:
bpftool-debuginfo-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-1062.18.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-1062.18.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-1062.18.1.el7.x86_64.rpm
Red Hat Enterprise Linux ComputeNode (v. 7):
Source:
kernel-3.10.0-1062.18.1.el7.src.rpm
noarch:
kernel-abi-whitelists-3.10.0-1062.18.1.el7.noarch.rpm
kernel-doc-3.10.0-1062.18.1.el7.noarch.rpm
x86_64:
bpftool-3.10.0-1062.18.1.el7.x86_64.rpm
bpftool-debuginfo-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-debug-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-devel-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-headers-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-tools-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-1062.18.1.el7.x86_64.rpm
perf-3.10.0-1062.18.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-1062.18.1.el7.x86_64.rpm
python-perf-3.10.0-1062.18.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-1062.18.1.el7.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional (v. 7):
x86_64:
bpftool-debuginfo-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-1062.18.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-1062.18.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-1062.18.1.el7.x86_64.rpm
Red Hat Enterprise Linux Server (v. 7):
Source:
kernel-3.10.0-1062.18.1.el7.src.rpm
noarch:
kernel-abi-whitelists-3.10.0-1062.18.1.el7.noarch.rpm
kernel-doc-3.10.0-1062.18.1.el7.noarch.rpm
ppc64:
bpftool-3.10.0-1062.18.1.el7.ppc64.rpm
bpftool-debuginfo-3.10.0-1062.18.1.el7.ppc64.rpm
kernel-3.10.0-1062.18.1.el7.ppc64.rpm
kernel-bootwrapper-3.10.0-1062.18.1.el7.ppc64.rpm
kernel-debug-3.10.0-1062.18.1.el7.ppc64.rpm
kernel-debug-debuginfo-3.10.0-1062.18.1.el7.ppc64.rpm
kernel-debug-devel-3.10.0-1062.18.1.el7.ppc64.rpm
kernel-debuginfo-3.10.0-1062.18.1.el7.ppc64.rpm
kernel-debuginfo-common-ppc64-3.10.0-1062.18.1.el7.ppc64.rpm
kernel-devel-3.10.0-1062.18.1.el7.ppc64.rpm
kernel-headers-3.10.0-1062.18.1.el7.ppc64.rpm
kernel-tools-3.10.0-1062.18.1.el7.ppc64.rpm
kernel-tools-debuginfo-3.10.0-1062.18.1.el7.ppc64.rpm
kernel-tools-libs-3.10.0-1062.18.1.el7.ppc64.rpm
perf-3.10.0-1062.18.1.el7.ppc64.rpm
perf-debuginfo-3.10.0-1062.18.1.el7.ppc64.rpm
python-perf-3.10.0-1062.18.1.el7.ppc64.rpm
python-perf-debuginfo-3.10.0-1062.18.1.el7.ppc64.rpm
ppc64le:
bpftool-3.10.0-1062.18.1.el7.ppc64le.rpm
bpftool-debuginfo-3.10.0-1062.18.1.el7.ppc64le.rpm
kernel-3.10.0-1062.18.1.el7.ppc64le.rpm
kernel-bootwrapper-3.10.0-1062.18.1.el7.ppc64le.rpm
kernel-debug-3.10.0-1062.18.1.el7.ppc64le.rpm
kernel-debug-debuginfo-3.10.0-1062.18.1.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-1062.18.1.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-1062.18.1.el7.ppc64le.rpm
kernel-devel-3.10.0-1062.18.1.el7.ppc64le.rpm
kernel-headers-3.10.0-1062.18.1.el7.ppc64le.rpm
kernel-tools-3.10.0-1062.18.1.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-1062.18.1.el7.ppc64le.rpm
kernel-tools-libs-3.10.0-1062.18.1.el7.ppc64le.rpm
perf-3.10.0-1062.18.1.el7.ppc64le.rpm
perf-debuginfo-3.10.0-1062.18.1.el7.ppc64le.rpm
python-perf-3.10.0-1062.18.1.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-1062.18.1.el7.ppc64le.rpm
s390x:
bpftool-3.10.0-1062.18.1.el7.s390x.rpm
bpftool-debuginfo-3.10.0-1062.18.1.el7.s390x.rpm
kernel-3.10.0-1062.18.1.el7.s390x.rpm
kernel-debug-3.10.0-1062.18.1.el7.s390x.rpm
kernel-debug-debuginfo-3.10.0-1062.18.1.el7.s390x.rpm
kernel-debug-devel-3.10.0-1062.18.1.el7.s390x.rpm
kernel-debuginfo-3.10.0-1062.18.1.el7.s390x.rpm
kernel-debuginfo-common-s390x-3.10.0-1062.18.1.el7.s390x.rpm
kernel-devel-3.10.0-1062.18.1.el7.s390x.rpm
kernel-headers-3.10.0-1062.18.1.el7.s390x.rpm
kernel-kdump-3.10.0-1062.18.1.el7.s390x.rpm
kernel-kdump-debuginfo-3.10.0-1062.18.1.el7.s390x.rpm
kernel-kdump-devel-3.10.0-1062.18.1.el7.s390x.rpm
perf-3.10.0-1062.18.1.el7.s390x.rpm
perf-debuginfo-3.10.0-1062.18.1.el7.s390x.rpm
python-perf-3.10.0-1062.18.1.el7.s390x.rpm
python-perf-debuginfo-3.10.0-1062.18.1.el7.s390x.rpm
x86_64:
bpftool-3.10.0-1062.18.1.el7.x86_64.rpm
bpftool-debuginfo-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-debug-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-devel-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-headers-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-tools-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-1062.18.1.el7.x86_64.rpm
perf-3.10.0-1062.18.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-1062.18.1.el7.x86_64.rpm
python-perf-3.10.0-1062.18.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-1062.18.1.el7.x86_64.rpm
Red Hat Enterprise Linux Server Optional (v. 7):
ppc64:
bpftool-debuginfo-3.10.0-1062.18.1.el7.ppc64.rpm
kernel-debug-debuginfo-3.10.0-1062.18.1.el7.ppc64.rpm
kernel-debuginfo-3.10.0-1062.18.1.el7.ppc64.rpm
kernel-debuginfo-common-ppc64-3.10.0-1062.18.1.el7.ppc64.rpm
kernel-tools-debuginfo-3.10.0-1062.18.1.el7.ppc64.rpm
kernel-tools-libs-devel-3.10.0-1062.18.1.el7.ppc64.rpm
perf-debuginfo-3.10.0-1062.18.1.el7.ppc64.rpm
python-perf-debuginfo-3.10.0-1062.18.1.el7.ppc64.rpm
ppc64le:
bpftool-debuginfo-3.10.0-1062.18.1.el7.ppc64le.rpm
kernel-debug-debuginfo-3.10.0-1062.18.1.el7.ppc64le.rpm
kernel-debug-devel-3.10.0-1062.18.1.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-1062.18.1.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-1062.18.1.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-1062.18.1.el7.ppc64le.rpm
kernel-tools-libs-devel-3.10.0-1062.18.1.el7.ppc64le.rpm
perf-debuginfo-3.10.0-1062.18.1.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-1062.18.1.el7.ppc64le.rpm
x86_64:
bpftool-debuginfo-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-1062.18.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-1062.18.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-1062.18.1.el7.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 7):
Source:
kernel-3.10.0-1062.18.1.el7.src.rpm
noarch:
kernel-abi-whitelists-3.10.0-1062.18.1.el7.noarch.rpm
kernel-doc-3.10.0-1062.18.1.el7.noarch.rpm
x86_64:
bpftool-3.10.0-1062.18.1.el7.x86_64.rpm
bpftool-debuginfo-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-debug-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-devel-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-headers-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-tools-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-1062.18.1.el7.x86_64.rpm
perf-3.10.0-1062.18.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-1062.18.1.el7.x86_64.rpm
python-perf-3.10.0-1062.18.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-1062.18.1.el7.x86_64.rpm
Red Hat Enterprise Linux Workstation Optional (v. 7):
x86_64:
bpftool-debuginfo-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-1062.18.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-1062.18.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-1062.18.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-1062.18.1.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-2019-11487
https://access.redhat.com/security/cve/CVE-2019-17666
https://access.redhat.com/security/cve/CVE-2019-19338
https://access.redhat.com/security/updates/classification/#important
https://access.redhat.com/solutions/tsx-asynchronousabort
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2020 Red Hat, Inc.
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