CVE-2022-4129
Public on 2022-11-28
Modified on 2024-08-01
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
CVSS v3 Base Score
See breakdown
Affected Packages
| Platform | Package | Release Date | Advisory | Status |
|---|---|---|---|---|
| Amazon Linux 1 | kernel | Not Affected | ||
| Amazon Linux 2 - Core | kernel | Pending Fix | ||
| Amazon Linux 2 - Kernel-5.10 Extra | kernel | 2023-03-17 | ALAS2KERNEL-5.10-2023-027 | Fixed |
| Amazon Linux 2 - Kernel-5.15 Extra | kernel | 2023-03-17 | ALAS2KERNEL-5.15-2023-014 | Fixed |
| Amazon Linux 2 - Kernel-5.15 Extra | kernel | 2024-02-01 | ALAS2KERNEL-5.15-2024-037 | Fixed |
| Amazon Linux 2 - Kernel-5.4 Extra | kernel | 2023-02-17 | ALAS2KERNEL-5.4-2023-042 | Fixed |
| Amazon Linux 2023 | kernel | Not Affected |
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 |