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RedHat: RHSA-2023-4023-01 Important: Kpatch-Patch Privilege Escalation

red hat
Calendar Grey July 11, 2023
Dist Redhat Esm H88
The recent kpatch-patch security update from Red Hat tackles a significant privilege escalation vulnerability in the kernel, enabling resolution without requiring a system reboot.
An update for kpatch-patch is now available for Red Hat Enterprise Linux 7.7 Update Services for SAP Solutions

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

Summary

The kpatch management tool provides a kernel patching infrastructure which allows you to patch a running kernel without rebooting or restarting any processes.
Security Fix(es):
* kernel: a use-after-free in cls_route filter implementation may lead to privilege escalation (CVE-2022-2588)
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 important red hat enterprise linux kernel patching kpatch-patch

References

https://access.redhat.com/security/cve/CVE-2022-2588 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux Server E4S (v. 7.7):
Source: kpatch-patch-3_10_0-1062_71_1-1-2.el7.src.rpm kpatch-patch-3_10_0-1062_72_1-1-1.el7.src.rpm
ppc64le: kpatch-patch-3_10_0-1062_71_1-1-2.el7.ppc64le.rpm kpatch-patch-3_10_0-1062_71_1-debuginfo-1-2.el7.ppc64le.rpm kpatch-patch-3_10_0-1062_72_1-1-1.el7.ppc64le.rpm kpatch-patch-3_10_0-1062_72_1-debuginfo-1-1.el7.ppc64le.rpm
x86_64: kpatch-patch-3_10_0-1062_71_1-1-2.el7.x86_64.rpm kpatch-patch-3_10_0-1062_71_1-debuginfo-1-2.el7.x86_64.rpm kpatch-patch-3_10_0-1062_72_1-1-1.el7.x86_64.rpm kpatch-patch-3_10_0-1062_72_1-debuginfo-1-1.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/


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2023:4023-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2023:4023
Issue date: 2023-07-11

Topic

An update for kpatch-patch is now available for Red Hat Enterprise Linux7.7 Update Services for SAP Solutions.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 important red hat enterprise linux kernel patching kpatch-patch

Relevant Releases Architectures

Red Hat Enterprise Linux Server E4S (v. 7.7) - ppc64le, x86_64

Bugs Fixed

2114849 - CVE-2022-2588 kernel: a use-after-free in cls_route filter implementation may lead to privilege escalation

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