RedHat: RHSA-2021-0763:01 Important: kpatch-patch security update
Summary
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: bad kfree in auditfilter.c may lead to escalation of privilege
(CVE-2020-0444)
* kernel: Local buffer overflow in ctnetlink_parse_tuple_filter in
net/netfilter/nf_conntrack_netlink.c (CVE-2020-25211)
* kernel: locking issue in drivers/tty/tty_jobctrl.c can lead to an
use-after-free (CVE-2020-29661)
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.
Summary
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
References
https://access.redhat.com/security/cve/CVE-2020-0444 https://access.redhat.com/security/cve/CVE-2020-25211 https://access.redhat.com/security/cve/CVE-2020-29661 https://access.redhat.com/security/updates/classification/#important
Package List
Red Hat Enterprise Linux BaseOS EUS (v. 8.2):
Source:
kpatch-patch-4_18_0-193-1-10.el8.src.rpm
kpatch-patch-4_18_0-193_13_2-1-5.el8_2.src.rpm
kpatch-patch-4_18_0-193_14_3-1-5.el8_2.src.rpm
kpatch-patch-4_18_0-193_19_1-1-5.el8_2.src.rpm
kpatch-patch-4_18_0-193_1_2-1-8.el8_2.src.rpm
kpatch-patch-4_18_0-193_28_1-1-3.el8_2.src.rpm
kpatch-patch-4_18_0-193_29_1-1-3.el8_2.src.rpm
kpatch-patch-4_18_0-193_37_1-1-3.el8_2.src.rpm
kpatch-patch-4_18_0-193_40_1-1-3.el8_2.src.rpm
kpatch-patch-4_18_0-193_41_1-1-3.el8_2.src.rpm
kpatch-patch-4_18_0-193_6_3-1-7.el8_2.src.rpm
ppc64le:
kpatch-patch-4_18_0-193-1-10.el8.ppc64le.rpm
kpatch-patch-4_18_0-193-debuginfo-1-10.el8.ppc64le.rpm
kpatch-patch-4_18_0-193-debugsource-1-10.el8.ppc64le.rpm
kpatch-patch-4_18_0-193_13_2-1-5.el8_2.ppc64le.rpm
kpatch-patch-4_18_0-193_13_2-debuginfo-1-5.el8_2.ppc64le.rpm
kpatch-patch-4_18_0-193_13_2-debugsource-1-5.el8_2.ppc64le.rpm
kpatch-patch-4_18_0-193_14_3-1-5.el8_2.ppc64le.rpm
kpatch-patch-4_18_0-193_14_3-debuginfo-1-5.el8_2.ppc64le.rpm
kpatch-patch-4_18_0-193_14_3-debugsource-1-5.el8_2.ppc64le.rpm
kpatch-patch-4_18_0-193_19_1-1-5.el8_2.ppc64le.rpm
kpatch-patch-4_18_0-193_19_1-debuginfo-1-5.el8_2.ppc64le.rpm
kpatch-patch-4_18_0-193_19_1-debugsource-1-5.el8_2.ppc64le.rpm
kpatch-patch-4_18_0-193_1_2-1-8.el8_2.ppc64le.rpm
kpatch-patch-4_18_0-193_1_2-debuginfo-1-8.el8_2.ppc64le.rpm
kpatch-patch-4_18_0-193_1_2-debugsource-1-8.el8_2.ppc64le.rpm
kpatch-patch-4_18_0-193_28_1-1-3.el8_2.ppc64le.rpm
kpatch-patch-4_18_0-193_28_1-debuginfo-1-3.el8_2.ppc64le.rpm
kpatch-patch-4_18_0-193_28_1-debugsource-1-3.el8_2.ppc64le.rpm
kpatch-patch-4_18_0-193_29_1-1-3.el8_2.ppc64le.rpm
kpatch-patch-4_18_0-193_29_1-debuginfo-1-3.el8_2.ppc64le.rpm
kpatch-patch-4_18_0-193_29_1-debugsource-1-3.el8_2.ppc64le.rpm
kpatch-patch-4_18_0-193_37_1-1-3.el8_2.ppc64le.rpm
kpatch-patch-4_18_0-193_37_1-debuginfo-1-3.el8_2.ppc64le.rpm
kpatch-patch-4_18_0-193_37_1-debugsource-1-3.el8_2.ppc64le.rpm
kpatch-patch-4_18_0-193_40_1-1-3.el8_2.ppc64le.rpm
kpatch-patch-4_18_0-193_40_1-debuginfo-1-3.el8_2.ppc64le.rpm
kpatch-patch-4_18_0-193_40_1-debugsource-1-3.el8_2.ppc64le.rpm
kpatch-patch-4_18_0-193_41_1-1-3.el8_2.ppc64le.rpm
kpatch-patch-4_18_0-193_41_1-debuginfo-1-3.el8_2.ppc64le.rpm
kpatch-patch-4_18_0-193_41_1-debugsource-1-3.el8_2.ppc64le.rpm
kpatch-patch-4_18_0-193_6_3-1-7.el8_2.ppc64le.rpm
kpatch-patch-4_18_0-193_6_3-debuginfo-1-7.el8_2.ppc64le.rpm
kpatch-patch-4_18_0-193_6_3-debugsource-1-7.el8_2.ppc64le.rpm
x86_64:
kpatch-patch-4_18_0-193-1-10.el8.x86_64.rpm
kpatch-patch-4_18_0-193-debuginfo-1-10.el8.x86_64.rpm
kpatch-patch-4_18_0-193-debugsource-1-10.el8.x86_64.rpm
kpatch-patch-4_18_0-193_13_2-1-5.el8_2.x86_64.rpm
kpatch-patch-4_18_0-193_13_2-debuginfo-1-5.el8_2.x86_64.rpm
kpatch-patch-4_18_0-193_13_2-debugsource-1-5.el8_2.x86_64.rpm
kpatch-patch-4_18_0-193_14_3-1-5.el8_2.x86_64.rpm
kpatch-patch-4_18_0-193_14_3-debuginfo-1-5.el8_2.x86_64.rpm
kpatch-patch-4_18_0-193_14_3-debugsource-1-5.el8_2.x86_64.rpm
kpatch-patch-4_18_0-193_19_1-1-5.el8_2.x86_64.rpm
kpatch-patch-4_18_0-193_19_1-debuginfo-1-5.el8_2.x86_64.rpm
kpatch-patch-4_18_0-193_19_1-debugsource-1-5.el8_2.x86_64.rpm
kpatch-patch-4_18_0-193_1_2-1-8.el8_2.x86_64.rpm
kpatch-patch-4_18_0-193_1_2-debuginfo-1-8.el8_2.x86_64.rpm
kpatch-patch-4_18_0-193_1_2-debugsource-1-8.el8_2.x86_64.rpm
kpatch-patch-4_18_0-193_28_1-1-3.el8_2.x86_64.rpm
kpatch-patch-4_18_0-193_28_1-debuginfo-1-3.el8_2.x86_64.rpm
kpatch-patch-4_18_0-193_28_1-debugsource-1-3.el8_2.x86_64.rpm
kpatch-patch-4_18_0-193_29_1-1-3.el8_2.x86_64.rpm
kpatch-patch-4_18_0-193_29_1-debuginfo-1-3.el8_2.x86_64.rpm
kpatch-patch-4_18_0-193_29_1-debugsource-1-3.el8_2.x86_64.rpm
kpatch-patch-4_18_0-193_37_1-1-3.el8_2.x86_64.rpm
kpatch-patch-4_18_0-193_37_1-debuginfo-1-3.el8_2.x86_64.rpm
kpatch-patch-4_18_0-193_37_1-debugsource-1-3.el8_2.x86_64.rpm
kpatch-patch-4_18_0-193_40_1-1-3.el8_2.x86_64.rpm
kpatch-patch-4_18_0-193_40_1-debuginfo-1-3.el8_2.x86_64.rpm
kpatch-patch-4_18_0-193_40_1-debugsource-1-3.el8_2.x86_64.rpm
kpatch-patch-4_18_0-193_41_1-1-3.el8_2.x86_64.rpm
kpatch-patch-4_18_0-193_41_1-debuginfo-1-3.el8_2.x86_64.rpm
kpatch-patch-4_18_0-193_41_1-debugsource-1-3.el8_2.x86_64.rpm
kpatch-patch-4_18_0-193_6_3-1-7.el8_2.x86_64.rpm
kpatch-patch-4_18_0-193_6_3-debuginfo-1-7.el8_2.x86_64.rpm
kpatch-patch-4_18_0-193_6_3-debugsource-1-7.el8_2.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/
Topic
An update for kpatch-patch is now available for Red Hat Enterprise Linux8.2 Extended Update Support.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.
Topic
Relevant Releases Architectures
Red Hat Enterprise Linux BaseOS EUS (v. 8.2) - ppc64le, x86_64
Bugs Fixed
1877571 - CVE-2020-25211 kernel: Local buffer overflow in ctnetlink_parse_tuple_filter in net/netfilter/nf_conntrack_netlink.c
1906525 - CVE-2020-29661 kernel: locking issue in drivers/tty/tty_jobctrl.c can lead to an use-after-free
1920474 - CVE-2020-0444 kernel: bad kfree in auditfilter.c may lead to escalation of privilege