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Red Hat: RHSA-2023-1008-01 Important: kpatch-patch Security Update

red hat
Calendar Grey February 28, 2023
Dist Redhat Esm H88
Important revision for kpatch-patch on Red Hat Enterprise Linux 9 resolves security vulnerabilities and introduces improvements.
An update for kpatch-patch is now available for Red Hat Enterprise Linux 9

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)
* kernel: stack overflow in do_proc_dointvec and proc_skip_spaces (CVE-2022-4378)
* kernel: use-after-free in __nfs42_ssc_open() in fs/nfs/nfs4file.c leading to remote Denial of Service attack (CVE-2022-4379)
* kernel: Netfilter integer overflow vulnerability in nft_payload_copy_vlan (CVE-2023-0179)
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 integer overflow remote denial of service important update kpatch-patch

References

https://access.redhat.com/security/cve/CVE-2022-3564 https://access.redhat.com/security/cve/CVE-2022-4378 https://access.redhat.com/security/cve/CVE-2022-4379 https://access.redhat.com/security/cve/CVE-2023-0179 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux BaseOS (v. 9):
Source: kpatch-patch-5_14_0-162_12_1-1-1.el9_1.src.rpm kpatch-patch-5_14_0-162_6_1-1-2.el9_1.src.rpm
ppc64le: kpatch-patch-5_14_0-162_12_1-1-1.el9_1.ppc64le.rpm kpatch-patch-5_14_0-162_12_1-debuginfo-1-1.el9_1.ppc64le.rpm kpatch-patch-5_14_0-162_12_1-debugsource-1-1.el9_1.ppc64le.rpm kpatch-patch-5_14_0-162_6_1-1-2.el9_1.ppc64le.rpm kpatch-patch-5_14_0-162_6_1-debuginfo-1-2.el9_1.ppc64le.rpm kpatch-patch-5_14_0-162_6_1-debugsource-1-2.el9_1.ppc64le.rpm
x86_64: kpatch-patch-5_14_0-162_12_1-1-1.el9_1.x86_64.rpm kpatch-patch-5_14_0-162_12_1-debuginfo-1-1.el9_1.x86_64.rpm kpatch-patch-5_14_0-162_12_1-debugsource-1-1.el9_1.x86_64.rpm kpatch-patch-5_14_0-162_6_1-1-2.el9_1.x86_64.rpm kpatch-patch-5_14_0-162_6_1-debuginfo-1-2.el9_1.x86_64.rpm kpatch-patch-5_14_0-162_6_1-debugsource-1-2.el9_1.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-2023:1008-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2023:1008
Issue date: 2023-02-28

Topic

An update for kpatch-patch is now available for Red Hat Enterprise Linux 9.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 integer overflow remote denial of service important update kpatch-patch

Relevant Releases Architectures

Red Hat Enterprise Linux BaseOS (v. 9) - ppc64le, x86_64

Bugs Fixed

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

2152548 - CVE-2022-4378 kernel: stack overflow in do_proc_dointvec and proc_skip_spaces

2152807 - CVE-2022-4379 kernel: use-after-free in __nfs42_ssc_open() in fs/nfs/nfs4file.c leading to remote Denial of Service attack

2161713 - CVE-2023-0179 kernel: Netfilter integer overflow vulnerability in nft_payload_copy_vlan

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