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AUSCERT External Security Bulletin Redistribution
ESB-2019.0246
Moderate: kernel-alt security, bug fix, and enhancement update
30 January 2019
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: kernel-alt
Publisher: Red Hat
Operating System: Red Hat Enterprise Linux Server 7
Impact/Access: Denial of Service -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2018-10840
Reference: ESB-2018.2515.3
Original Bulletin:
https://access.redhat.com/errata/RHSA-2019:0162
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Red Hat Security Advisory
Synopsis: Moderate: kernel-alt security, bug fix, and enhancement update
Advisory ID: RHSA-2019:0162-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2019:0162
Issue date: 2019-01-29
CVE Names: CVE-2018-10840
=====================================================================
1. Summary:
An update for kernel-alt is now available for Red Hat Enterprise Linux 7.
Red Hat Product Security has rated this update as having a security impact
of Moderate. 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 for ARM and IBM Power LE (POWER9) Server (v. 7) - aarch64, noarch, ppc64le, s390x
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) - aarch64, noarch, ppc64le
3. Description:
The kernel-alt packages provide the Linux kernel version 4.x.
Security Fix(es):
* kernel: Heap-based buffer overflow in
fs/ext4/xattr.c:ext4_xattr_set_entry() with crafted ext4 image
(CVE-2018-10840)
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.
Bug Fix(es):
These updated kernel-alt packages include also numerous bug fixes and
enhancements. Space precludes documenting all of the bug fixes in this
advisory. See the descriptions in the related Knowledge Article:
https://access.redhat.com/articles/3824202
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/):
1582346 - CVE-2018-10840 kernel: Heap-based buffer overflow in fs/ext4/xattr.c:ext4_xattr_set_entry() with crafted ext4 image
6. Package List:
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7):
Source:
kernel-alt-4.14.0-115.5.1.el7a.src.rpm
aarch64:
kernel-4.14.0-115.5.1.el7a.aarch64.rpm
kernel-debug-4.14.0-115.5.1.el7a.aarch64.rpm
kernel-debug-debuginfo-4.14.0-115.5.1.el7a.aarch64.rpm
kernel-debug-devel-4.14.0-115.5.1.el7a.aarch64.rpm
kernel-debuginfo-4.14.0-115.5.1.el7a.aarch64.rpm
kernel-debuginfo-common-aarch64-4.14.0-115.5.1.el7a.aarch64.rpm
kernel-devel-4.14.0-115.5.1.el7a.aarch64.rpm
kernel-headers-4.14.0-115.5.1.el7a.aarch64.rpm
kernel-tools-4.14.0-115.5.1.el7a.aarch64.rpm
kernel-tools-debuginfo-4.14.0-115.5.1.el7a.aarch64.rpm
kernel-tools-libs-4.14.0-115.5.1.el7a.aarch64.rpm
perf-4.14.0-115.5.1.el7a.aarch64.rpm
perf-debuginfo-4.14.0-115.5.1.el7a.aarch64.rpm
python-perf-4.14.0-115.5.1.el7a.aarch64.rpm
python-perf-debuginfo-4.14.0-115.5.1.el7a.aarch64.rpm
noarch:
kernel-abi-whitelists-4.14.0-115.5.1.el7a.noarch.rpm
kernel-doc-4.14.0-115.5.1.el7a.noarch.rpm
ppc64le:
kernel-4.14.0-115.5.1.el7a.ppc64le.rpm
kernel-bootwrapper-4.14.0-115.5.1.el7a.ppc64le.rpm
kernel-debug-4.14.0-115.5.1.el7a.ppc64le.rpm
kernel-debug-debuginfo-4.14.0-115.5.1.el7a.ppc64le.rpm
kernel-debuginfo-4.14.0-115.5.1.el7a.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.14.0-115.5.1.el7a.ppc64le.rpm
kernel-devel-4.14.0-115.5.1.el7a.ppc64le.rpm
kernel-headers-4.14.0-115.5.1.el7a.ppc64le.rpm
kernel-tools-4.14.0-115.5.1.el7a.ppc64le.rpm
kernel-tools-debuginfo-4.14.0-115.5.1.el7a.ppc64le.rpm
kernel-tools-libs-4.14.0-115.5.1.el7a.ppc64le.rpm
perf-4.14.0-115.5.1.el7a.ppc64le.rpm
perf-debuginfo-4.14.0-115.5.1.el7a.ppc64le.rpm
python-perf-4.14.0-115.5.1.el7a.ppc64le.rpm
python-perf-debuginfo-4.14.0-115.5.1.el7a.ppc64le.rpm
s390x:
kernel-4.14.0-115.5.1.el7a.s390x.rpm
kernel-debug-4.14.0-115.5.1.el7a.s390x.rpm
kernel-debug-debuginfo-4.14.0-115.5.1.el7a.s390x.rpm
kernel-debug-devel-4.14.0-115.5.1.el7a.s390x.rpm
kernel-debuginfo-4.14.0-115.5.1.el7a.s390x.rpm
kernel-debuginfo-common-s390x-4.14.0-115.5.1.el7a.s390x.rpm
kernel-devel-4.14.0-115.5.1.el7a.s390x.rpm
kernel-headers-4.14.0-115.5.1.el7a.s390x.rpm
kernel-kdump-4.14.0-115.5.1.el7a.s390x.rpm
kernel-kdump-debuginfo-4.14.0-115.5.1.el7a.s390x.rpm
kernel-kdump-devel-4.14.0-115.5.1.el7a.s390x.rpm
perf-4.14.0-115.5.1.el7a.s390x.rpm
perf-debuginfo-4.14.0-115.5.1.el7a.s390x.rpm
python-perf-4.14.0-115.5.1.el7a.s390x.rpm
python-perf-debuginfo-4.14.0-115.5.1.el7a.s390x.rpm
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7):
aarch64:
kernel-debug-debuginfo-4.14.0-115.5.1.el7a.aarch64.rpm
kernel-debuginfo-4.14.0-115.5.1.el7a.aarch64.rpm
kernel-debuginfo-common-aarch64-4.14.0-115.5.1.el7a.aarch64.rpm
kernel-tools-debuginfo-4.14.0-115.5.1.el7a.aarch64.rpm
kernel-tools-libs-devel-4.14.0-115.5.1.el7a.aarch64.rpm
perf-debuginfo-4.14.0-115.5.1.el7a.aarch64.rpm
python-perf-debuginfo-4.14.0-115.5.1.el7a.aarch64.rpm
noarch:
kernel-doc-4.14.0-115.5.1.el7a.noarch.rpm
ppc64le:
kernel-debug-debuginfo-4.14.0-115.5.1.el7a.ppc64le.rpm
kernel-debug-devel-4.14.0-115.5.1.el7a.ppc64le.rpm
kernel-debuginfo-4.14.0-115.5.1.el7a.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.14.0-115.5.1.el7a.ppc64le.rpm
kernel-tools-debuginfo-4.14.0-115.5.1.el7a.ppc64le.rpm
kernel-tools-libs-devel-4.14.0-115.5.1.el7a.ppc64le.rpm
perf-debuginfo-4.14.0-115.5.1.el7a.ppc64le.rpm
python-perf-debuginfo-4.14.0-115.5.1.el7a.ppc64le.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-2018-10840
https://access.redhat.com/security/updates/classification/#moderate
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2019 Red Hat, Inc.
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