CVE-2022-4379: Use After Free

Published Dec 13, 2022
·
Updated

A use-after-free vulnerability in nfs42sscopen() in fs/nfs/nfs4file.c in Linux kernel through v6.1-rc8, which allows an attacker to conduct remote Denial of Service attack.

Other sources

A use-after-free vulnerability was found in nfs42sscopen() in fs/nfs/nfs4file.c in the Linux kernel. This flaw allows an attacker to conduct a remote denial

Affected Software

10 affected componentsFixes available
redhat/kernel<0:5.14.0-162.18.1.el9_1
0:5.14.0-162.18.1.el9_1
redhat/kernel-rt<0:5.14.0-162.18.1.rt21.181.el9_1
0:5.14.0-162.18.1.rt21.181.el9_1
redhat/kernel<0:5.14.0-70.49.1.el9_0
0:5.14.0-70.49.1.el9_0
redhat/kernel-rt<0:5.14.0-70.49.1.rt21.120.el9_0
0:5.14.0-70.49.1.rt21.120.el9_0
Linux Linux kernel>=5.6<5.10.177
Linux Linux kernel>=5.11<5.15.105
Linux Linux kernel>=5.16<6.1.3
Fedoraproject Fedora=36
Fedoraproject Fedora=37
debian/linux
5.10.223-15.10.234-16.1.129-16.1.135-16.12.25-16.12.27-1

Remediation

Information

Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

Event History

Dec 13, 2022
Data Sourced
via Red Hat·06:52 AM
DescriptionSeverityAffected Software
Dec 15, 2022
CVE Published
06:30 AM
Jan 10, 2023
CVE Published
via MITRE·12:00 AM
Data Sourced
via MITRE·12:00 AM
DescriptionWeakness
Jan 12, 2024
Data Sourced
via Launchpad·12:12 AM
Description
Dec 1, 2024
Data Sourced
via Ubuntu·03:55 AM
RemedyDescriptionSeverityAffected Software
Mar 27, 2025
Data Sourced
via Debian·04:55 AM
DescriptionAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Frequently Asked Questions

1

What is the severity of CVE-2022-4379?

CVE-2022-4379 has been classified with a high severity rating due to its potential to allow remote denial of service attacks.

2

How do I fix CVE-2022-4379?

To mitigate CVE-2022-4379, update your Linux kernel to a version that is patched for this vulnerability.

3

Which versions are affected by CVE-2022-4379?

CVE-2022-4379 affects various Linux kernel versions starting from 5.6 up to 6.1-rc8 that are not patched.

4

Is CVE-2022-4379 present in the Red Hat kernel package?

Yes, CVE-2022-4379 is present in certain versions of the Red Hat kernel package prior to the release of fixed versions.

5

What systems are impacted by CVE-2022-4379?

CVE-2022-4379 impacts systems running vulnerable versions of the Linux kernel and specific distributions like Red Hat and Fedora.

Contact

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