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CVE-2022-4129

Public on 2022-11-28
Modified on 2024-01-12
Description

A flaw was found in the Linux kernel's Layer 2 Tunneling Protocol (L2TP). A missing lock when clearing sk_user_data can lead to a race condition and NULL pointer dereference. A local user could use this flaw to potentially crash the system causing a denial of service.

Severity
Medium
See what this means
CVSS v3 Base Score
5.5
See breakdown

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 - Kernel-5.10 Extra kernel 2023-03-17 16:46 ALAS2KERNEL-5.10-2023-027
Amazon Linux 2 - Kernel-5.15 Extra kernel 2023-03-17 16:45 ALAS2KERNEL-5.15-2023-014
Amazon Linux 2 - Kernel-5.15 Extra kernel 2024-02-01 20:10 ALAS2KERNEL-5.15-2024-037
Amazon Linux 2 - Kernel-5.4 Extra kernel 2023-02-17 00:07 ALAS2KERNEL-5.4-2023-042

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD CVSSv3 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References

Red Hat: CVE-2022-4129 Mitre: CVE-2022-4129 FAQs regarding Amazon Linux ALAS/CVE Severity