RedHat: RHSA-2022-0849:01 Important: kpatch-patch security update |...
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=====================================================================
                   Red Hat Security Advisory

Synopsis:          Important: kpatch-patch security update
Advisory ID:       RHSA-2022:0849-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2022:0849
Issue date:        2022-03-14
CVE Names:         CVE-2021-0920 CVE-2021-4154 CVE-2022-0330 
                   CVE-2022-0435 CVE-2022-0492 CVE-2022-22942 
=====================================================================

1. Summary:

An update for kpatch-patch is now available for Red Hat Enterprise Linux 8.

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 BaseOS (v. 8) - 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: Use After Free in unix_gc() which could result in a local
privilege escalation (CVE-2021-0920)

* kernel: local privilege escalation by exploiting the fsconfig syscall
parameter leads to container breakout (CVE-2021-4154)

* kernel: possible privileges escalation due to missing TLB flush
(CVE-2022-0330)

* kernel: remote stack overflow via kernel panic on systems using TIPC may
lead to DoS (CVE-2022-0435)

* kernel: cgroups v1 release_agent feature may allow privilege escalation
(CVE-2022-0492)

* kernel: failing usercopy allows for use-after-free exploitation
(CVE-2022-22942)

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/):

2031930 - CVE-2021-0920 kernel: Use After Free in unix_gc() which could result in a local privilege escalation
2034514 - CVE-2021-4154 kernel: local privilege escalation by exploiting the fsconfig syscall parameter leads to container breakout
2042404 - CVE-2022-0330 kernel: possible privileges escalation due to missing TLB flush
2044809 - CVE-2022-22942 kernel: failing usercopy allows for use-after-free exploitation
2048738 - CVE-2022-0435 kernel: remote stack overflow via kernel panic on systems using TIPC may lead to DoS
2051505 - CVE-2022-0492 kernel: cgroups v1 release_agent feature may allow privilege escalation

6. Package List:

Red Hat Enterprise Linux BaseOS (v. 8):

Source:
kpatch-patch-4_18_0-348-1-3.el8.src.rpm
kpatch-patch-4_18_0-348_12_2-1-1.el8_5.src.rpm
kpatch-patch-4_18_0-348_2_1-1-2.el8_5.src.rpm
kpatch-patch-4_18_0-348_7_1-1-2.el8_5.src.rpm

ppc64le:
kpatch-patch-4_18_0-348-1-3.el8.ppc64le.rpm
kpatch-patch-4_18_0-348-debuginfo-1-3.el8.ppc64le.rpm
kpatch-patch-4_18_0-348-debugsource-1-3.el8.ppc64le.rpm
kpatch-patch-4_18_0-348_12_2-1-1.el8_5.ppc64le.rpm
kpatch-patch-4_18_0-348_12_2-debuginfo-1-1.el8_5.ppc64le.rpm
kpatch-patch-4_18_0-348_12_2-debugsource-1-1.el8_5.ppc64le.rpm
kpatch-patch-4_18_0-348_2_1-1-2.el8_5.ppc64le.rpm
kpatch-patch-4_18_0-348_2_1-debuginfo-1-2.el8_5.ppc64le.rpm
kpatch-patch-4_18_0-348_2_1-debugsource-1-2.el8_5.ppc64le.rpm
kpatch-patch-4_18_0-348_7_1-1-2.el8_5.ppc64le.rpm
kpatch-patch-4_18_0-348_7_1-debuginfo-1-2.el8_5.ppc64le.rpm
kpatch-patch-4_18_0-348_7_1-debugsource-1-2.el8_5.ppc64le.rpm

x86_64:
kpatch-patch-4_18_0-348-1-3.el8.x86_64.rpm
kpatch-patch-4_18_0-348-debuginfo-1-3.el8.x86_64.rpm
kpatch-patch-4_18_0-348-debugsource-1-3.el8.x86_64.rpm
kpatch-patch-4_18_0-348_12_2-1-1.el8_5.x86_64.rpm
kpatch-patch-4_18_0-348_12_2-debuginfo-1-1.el8_5.x86_64.rpm
kpatch-patch-4_18_0-348_12_2-debugsource-1-1.el8_5.x86_64.rpm
kpatch-patch-4_18_0-348_2_1-1-2.el8_5.x86_64.rpm
kpatch-patch-4_18_0-348_2_1-debuginfo-1-2.el8_5.x86_64.rpm
kpatch-patch-4_18_0-348_2_1-debugsource-1-2.el8_5.x86_64.rpm
kpatch-patch-4_18_0-348_7_1-1-2.el8_5.x86_64.rpm
kpatch-patch-4_18_0-348_7_1-debuginfo-1-2.el8_5.x86_64.rpm
kpatch-patch-4_18_0-348_7_1-debugsource-1-2.el8_5.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-2021-0920
https://access.redhat.com/security/cve/CVE-2021-4154
https://access.redhat.com/security/cve/CVE-2022-0330
https://access.redhat.com/security/cve/CVE-2022-0435
https://access.redhat.com/security/cve/CVE-2022-0492
https://access.redhat.com/security/cve/CVE-2022-22942
https://access.redhat.com/security/updates/classification/#important

8. Contact:

The Red Hat security contact is . More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2022 Red Hat, Inc.
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RedHat: RHSA-2022-0849:01 Important: kpatch-patch security update

An update for kpatch-patch is now available for Red Hat Enterprise Linux 8

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: Use After Free in unix_gc() which could result in a local privilege escalation (CVE-2021-0920)
* kernel: local privilege escalation by exploiting the fsconfig syscall parameter leads to container breakout (CVE-2021-4154)
* kernel: possible privileges escalation due to missing TLB flush (CVE-2022-0330)
* kernel: remote stack overflow via kernel panic on systems using TIPC may lead to DoS (CVE-2022-0435)
* kernel: cgroups v1 release_agent feature may allow privilege escalation (CVE-2022-0492)
* kernel: failing usercopy allows for use-after-free exploitation (CVE-2022-22942)
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.

Solution

For details on how to apply this update, which includes the changesdescribed in this advisory, refer to:https://access.redhat.com/articles/11258

References

https://access.redhat.com/security/cve/CVE-2021-0920 https://access.redhat.com/security/cve/CVE-2021-4154 https://access.redhat.com/security/cve/CVE-2022-0330 https://access.redhat.com/security/cve/CVE-2022-0435 https://access.redhat.com/security/cve/CVE-2022-0492 https://access.redhat.com/security/cve/CVE-2022-22942 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux BaseOS (v. 8):
Source: kpatch-patch-4_18_0-348-1-3.el8.src.rpm kpatch-patch-4_18_0-348_12_2-1-1.el8_5.src.rpm kpatch-patch-4_18_0-348_2_1-1-2.el8_5.src.rpm kpatch-patch-4_18_0-348_7_1-1-2.el8_5.src.rpm
ppc64le: kpatch-patch-4_18_0-348-1-3.el8.ppc64le.rpm kpatch-patch-4_18_0-348-debuginfo-1-3.el8.ppc64le.rpm kpatch-patch-4_18_0-348-debugsource-1-3.el8.ppc64le.rpm kpatch-patch-4_18_0-348_12_2-1-1.el8_5.ppc64le.rpm kpatch-patch-4_18_0-348_12_2-debuginfo-1-1.el8_5.ppc64le.rpm kpatch-patch-4_18_0-348_12_2-debugsource-1-1.el8_5.ppc64le.rpm kpatch-patch-4_18_0-348_2_1-1-2.el8_5.ppc64le.rpm kpatch-patch-4_18_0-348_2_1-debuginfo-1-2.el8_5.ppc64le.rpm kpatch-patch-4_18_0-348_2_1-debugsource-1-2.el8_5.ppc64le.rpm kpatch-patch-4_18_0-348_7_1-1-2.el8_5.ppc64le.rpm kpatch-patch-4_18_0-348_7_1-debuginfo-1-2.el8_5.ppc64le.rpm kpatch-patch-4_18_0-348_7_1-debugsource-1-2.el8_5.ppc64le.rpm
x86_64: kpatch-patch-4_18_0-348-1-3.el8.x86_64.rpm kpatch-patch-4_18_0-348-debuginfo-1-3.el8.x86_64.rpm kpatch-patch-4_18_0-348-debugsource-1-3.el8.x86_64.rpm kpatch-patch-4_18_0-348_12_2-1-1.el8_5.x86_64.rpm kpatch-patch-4_18_0-348_12_2-debuginfo-1-1.el8_5.x86_64.rpm kpatch-patch-4_18_0-348_12_2-debugsource-1-1.el8_5.x86_64.rpm kpatch-patch-4_18_0-348_2_1-1-2.el8_5.x86_64.rpm kpatch-patch-4_18_0-348_2_1-debuginfo-1-2.el8_5.x86_64.rpm kpatch-patch-4_18_0-348_2_1-debugsource-1-2.el8_5.x86_64.rpm kpatch-patch-4_18_0-348_7_1-1-2.el8_5.x86_64.rpm kpatch-patch-4_18_0-348_7_1-debuginfo-1-2.el8_5.x86_64.rpm kpatch-patch-4_18_0-348_7_1-debugsource-1-2.el8_5.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/

Severity
Advisory ID: RHSA-2022:0849-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2022:0849
Issued Date: : 2022-03-14
CVE Names: CVE-2021-0920 CVE-2021-4154 CVE-2022-0330 CVE-2022-0435 CVE-2022-0492 CVE-2022-22942

Topic

An update for kpatch-patch is now available for Red Hat Enterprise Linux 8.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.

Relevant Releases Architectures

Red Hat Enterprise Linux BaseOS (v. 8) - ppc64le, x86_64

Bugs Fixed

2031930 - CVE-2021-0920 kernel: Use After Free in unix_gc() which could result in a local privilege escalation

2034514 - CVE-2021-4154 kernel: local privilege escalation by exploiting the fsconfig syscall parameter leads to container breakout

2042404 - CVE-2022-0330 kernel: possible privileges escalation due to missing TLB flush

2044809 - CVE-2022-22942 kernel: failing usercopy allows for use-after-free exploitation

2048738 - CVE-2022-0435 kernel: remote stack overflow via kernel panic on systems using TIPC may lead to DoS

2051505 - CVE-2022-0492 kernel: cgroups v1 release_agent feature may allow privilege escalation

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