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Red Hat Security Advisory
Synopsis: Important: kpatch-patch security update
Advisory ID: RHSA-2020:2519-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:2519
Issue date: 2020-06-10
CVE Names: CVE-2019-19768 CVE-2020-10711
=====================================================================
1. Summary:
An update for kpatch-patch is now available for Red Hat Enterprise Linux
7.7 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 Server EUS (v. 7.7) – ppc64le, x86_64
3. Description:
This is a kernel live patch module which is automatically loaded by the RPM
post-install script to modify the code of a running kernel.
Security Fix(es):
* Kernel: NetLabel: null pointer dereference while receiving CIPSO packet
with null category may cause kernel panic (CVE-2020-10711)
* kernel: use-after-free in __blk_add_trace in kernel/trace/blktrace.c
(CVE-2019-19768)
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.
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
5. Bugs fixed (https://bugzilla.redhat.com/):
1786164 – CVE-2019-19768 kernel: use-after-free in __blk_add_trace in kernel/trace/blktrace.c
1825116 – CVE-2020-10711 Kernel: NetLabel: null pointer dereference while receiving CIPSO packet with null category may cause kernel panic
6. Package List:
Red Hat Enterprise Linux Server EUS (v. 7.7):
Source:
kpatch-patch-3_10_0-1062-1-18.el7.src.rpm
kpatch-patch-3_10_0-1062_12_1-1-2.el7.src.rpm
kpatch-patch-3_10_0-1062_18_1-1-2.el7.src.rpm
kpatch-patch-3_10_0-1062_1_1-1-17.el7.src.rpm
kpatch-patch-3_10_0-1062_1_2-1-16.el7.src.rpm
kpatch-patch-3_10_0-1062_21_1-1-2.el7.src.rpm
kpatch-patch-3_10_0-1062_4_1-1-13.el7.src.rpm
kpatch-patch-3_10_0-1062_4_2-1-10.el7.src.rpm
kpatch-patch-3_10_0-1062_4_3-1-10.el7.src.rpm
kpatch-patch-3_10_0-1062_7_1-1-7.el7.src.rpm
kpatch-patch-3_10_0-1062_9_1-1-7.el7.src.rpm
ppc64le:
kpatch-patch-3_10_0-1062-1-18.el7.ppc64le.rpm
kpatch-patch-3_10_0-1062-debuginfo-1-18.el7.ppc64le.rpm
kpatch-patch-3_10_0-1062_12_1-1-2.el7.ppc64le.rpm
kpatch-patch-3_10_0-1062_18_1-1-2.el7.ppc64le.rpm
kpatch-patch-3_10_0-1062_1_1-1-17.el7.ppc64le.rpm
kpatch-patch-3_10_0-1062_1_1-debuginfo-1-17.el7.ppc64le.rpm
kpatch-patch-3_10_0-1062_1_2-1-16.el7.ppc64le.rpm
kpatch-patch-3_10_0-1062_1_2-debuginfo-1-16.el7.ppc64le.rpm
kpatch-patch-3_10_0-1062_21_1-1-2.el7.ppc64le.rpm
kpatch-patch-3_10_0-1062_21_1-debuginfo-1-2.el7.ppc64le.rpm
kpatch-patch-3_10_0-1062_4_1-1-13.el7.ppc64le.rpm
kpatch-patch-3_10_0-1062_4_1-debuginfo-1-13.el7.ppc64le.rpm
kpatch-patch-3_10_0-1062_4_2-1-10.el7.ppc64le.rpm
kpatch-patch-3_10_0-1062_4_3-1-10.el7.ppc64le.rpm
kpatch-patch-3_10_0-1062_7_1-1-7.el7.ppc64le.rpm
kpatch-patch-3_10_0-1062_9_1-1-7.el7.ppc64le.rpm
x86_64:
kpatch-patch-3_10_0-1062-1-18.el7.x86_64.rpm
kpatch-patch-3_10_0-1062-debuginfo-1-18.el7.x86_64.rpm
kpatch-patch-3_10_0-1062_12_1-1-2.el7.x86_64.rpm
kpatch-patch-3_10_0-1062_18_1-1-2.el7.x86_64.rpm
kpatch-patch-3_10_0-1062_1_1-1-17.el7.x86_64.rpm
kpatch-patch-3_10_0-1062_1_1-debuginfo-1-17.el7.x86_64.rpm
kpatch-patch-3_10_0-1062_1_2-1-16.el7.x86_64.rpm
kpatch-patch-3_10_0-1062_1_2-debuginfo-1-16.el7.x86_64.rpm
kpatch-patch-3_10_0-1062_21_1-1-2.el7.x86_64.rpm
kpatch-patch-3_10_0-1062_21_1-debuginfo-1-2.el7.x86_64.rpm
kpatch-patch-3_10_0-1062_4_1-1-13.el7.x86_64.rpm
kpatch-patch-3_10_0-1062_4_1-debuginfo-1-13.el7.x86_64.rpm
kpatch-patch-3_10_0-1062_4_2-1-10.el7.x86_64.rpm
kpatch-patch-3_10_0-1062_4_3-1-10.el7.x86_64.rpm
kpatch-patch-3_10_0-1062_7_1-1-7.el7.x86_64.rpm
kpatch-patch-3_10_0-1062_9_1-1-7.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-2019-19768
https://access.redhat.com/security/cve/CVE-2020-10711
https://access.redhat.com/security/updates/classification/#important
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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