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Red Hat 7: RHSA-2022-2211-01 Important Kpatch-Patch Privilege Escalation

red hat
Calendar Grey May 11, 2022
Dist Redhat Esm H88
Canonical announces a significant kernel security patch for Ubuntu 20.04 to address severe vulnerabilities affecting system stability.
An update for kpatch-patch is now available for Red Hat Enterprise Linux 7

Solution

Before applying this update, make sure all previously released errata relevant to your system have been applied.

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

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 RDMA listen() (CVE-2021-4028)
* kernel: cgroups v1 release_agent feature may allow privilege escalation (CVE-2022-0492)
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.

Topics%20covered

Topics Covered

security advisory security update privilege escalation Red Hat Enterprise Linux important kernel kpatch-patch

References

https://access.redhat.com/security/cve/CVE-2021-4028 https://access.redhat.com/security/cve/CVE-2022-0492 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux Server E4S (v. 7.6):
Source: kpatch-patch-3_10_0-957_72_1-1-7.el7.src.rpm kpatch-patch-3_10_0-957_76_1-1-7.el7.src.rpm kpatch-patch-3_10_0-957_78_2-1-6.el7.src.rpm kpatch-patch-3_10_0-957_80_1-1-5.el7.src.rpm kpatch-patch-3_10_0-957_84_1-1-4.el7.src.rpm kpatch-patch-3_10_0-957_86_1-1-3.el7.src.rpm kpatch-patch-3_10_0-957_88_1-1-2.el7.src.rpm kpatch-patch-3_10_0-957_92_1-1-1.el7.src.rpm
ppc64le: kpatch-patch-3_10_0-957_72_1-1-7.el7.ppc64le.rpm kpatch-patch-3_10_0-957_72_1-debuginfo-1-7.el7.ppc64le.rpm kpatch-patch-3_10_0-957_76_1-1-7.el7.ppc64le.rpm kpatch-patch-3_10_0-957_76_1-debuginfo-1-7.el7.ppc64le.rpm kpatch-patch-3_10_0-957_78_2-1-6.el7.ppc64le.rpm kpatch-patch-3_10_0-957_78_2-debuginfo-1-6.el7.ppc64le.rpm kpatch-patch-3_10_0-957_80_1-1-5.el7.ppc64le.rpm kpatch-patch-3_10_0-957_80_1-debuginfo-1-5.el7.ppc64le.rpm kpatch-patch-3_10_0-957_84_1-1-4.el7.ppc64le.rpm kpatch-patch-3_10_0-957_84_1-debuginfo-1-4.el7.ppc64le.rpm kpatch-patch-3_10_0-957_86_1-1-3.el7.ppc64le.rpm kpatch-patch-3_10_0-957_86_1-debuginfo-1-3.el7.ppc64le.rpm kpatch-patch-3_10_0-957_88_1-1-2.el7.ppc64le.rpm kpatch-patch-3_10_0-957_88_1-debuginfo-1-2.el7.ppc64le.rpm kpatch-patch-3_10_0-957_92_1-1-1.el7.ppc64le.rpm kpatch-patch-3_10_0-957_92_1-debuginfo-1-1.el7.ppc64le.rpm


Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2022:2211-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2022:2211
Issue date: 2022-05-11

Topic

An update for kpatch-patch is now available for Red Hat Enterprise Linux 7.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.

Topics%20covered

Topics Covered

security advisory security update privilege escalation Red Hat Enterprise Linux important kernel kpatch-patch

Relevant Releases Architectures

Red Hat Enterprise Linux Server E4S (v. 7.6) - ppc64le, x86_64

Bugs Fixed

2027201 - CVE-2021-4028 kernel: use-after-free in RDMA listen()

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

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