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Red Hat: RHSA-2023:4215-01 Important: kpatch-patch Use-After-Free

red hat
Calendar Grey July 20, 2023
Dist Redhat Esm H88
Ubuntu unveils crucial kernel-live patch version tackling vulnerabilities that pose substantial security risks. Discover further details.
An update for kpatch-patch is now available for Red Hat Enterprise Linux 7

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

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 caused by l2cap_reassemble_sdu() in net/bluetooth/l2cap_core.c (CVE-2022-3564)
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 Red Hat Enterprise Linux important security impact use-after-free kernel patching

References

https://access.redhat.com/security/cve/CVE-2022-3564 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux Server (v. 7):
Source: kpatch-patch-3_10_0-1160_81_1-1-3.el7.src.rpm kpatch-patch-3_10_0-1160_83_1-1-2.el7.src.rpm kpatch-patch-3_10_0-1160_88_1-1-1.el7.src.rpm kpatch-patch-3_10_0-1160_90_1-1-1.el7.src.rpm kpatch-patch-3_10_0-1160_92_1-1-1.el7.src.rpm
ppc64le: kpatch-patch-3_10_0-1160_81_1-1-3.el7.ppc64le.rpm kpatch-patch-3_10_0-1160_81_1-debuginfo-1-3.el7.ppc64le.rpm kpatch-patch-3_10_0-1160_83_1-1-2.el7.ppc64le.rpm kpatch-patch-3_10_0-1160_83_1-debuginfo-1-2.el7.ppc64le.rpm kpatch-patch-3_10_0-1160_88_1-1-1.el7.ppc64le.rpm kpatch-patch-3_10_0-1160_88_1-debuginfo-1-1.el7.ppc64le.rpm kpatch-patch-3_10_0-1160_90_1-1-1.el7.ppc64le.rpm kpatch-patch-3_10_0-1160_90_1-debuginfo-1-1.el7.ppc64le.rpm kpatch-patch-3_10_0-1160_92_1-1-1.el7.ppc64le.rpm kpatch-patch-3_10_0-1160_92_1-debuginfo-1-1.el7.ppc64le.rpm
x86_64: kpatch-patch-3_10_0-1160_81_1-1-3.el7.x86_64.rpm kpatch-patch-3_10_0-1160_81_1-debuginfo-1-3.el7.x86_64.rpm kpatch-patch-3_10_0-1160_83_1-1-2.el7.x86_64.rpm kpatch-patch-3_10_0-1160_83_1-debuginfo-1-2.el7.x86_64.rpm kpatch-patch-3_10_0-1160_88_1-1-1.el7.x86_64.rpm kpatch-patch-3_10_0-1160_88_1-debuginfo-1-1.el7.x86_64.rpm kpatch-patch-3_10_0-1160_90_1-1-1.el7.x86_64.rpm kpatch-patch-3_10_0-1160_90_1-debuginfo-1-1.el7.x86_64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2023:4215-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2023:4215
Issue date: 2023-07-19

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 Red Hat Enterprise Linux important security impact use-after-free kernel patching

Relevant Releases Architectures

Red Hat Enterprise Linux Server (v. 7) - ppc64le, x86_64

Bugs Fixed

2150999 - CVE-2022-3564 kernel: use-after-free caused by l2cap_reassemble_sdu() in net/bluetooth/l2cap_core.c

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