CVE-2022-3586
Public on 2022-10-19
Modified on 2024-05-06
Description
A flaw was found in the Linux kernel’s networking code. A use-after-free was found in the way the sch_sfb enqueue function used the socket buffer (SKB) cb field after the same SKB had been enqueued (and freed) into a child qdisc. This flaw allows a local, unprivileged user to 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 | No Fix Planned | ||
| Amazon Linux 2 - Kernel-5.10 Extra | kernel | Pending Fix | ||
| Amazon Linux 2 - Kernel-5.15 Extra | kernel | Pending Fix | ||
| Amazon Linux 2 - Kernel-5.4 Extra | kernel | Pending Fix | ||
| Amazon Linux 2 - Core | kernel | 2022-09-30 | ALAS2-2022-1852 | Fixed |
| Amazon Linux 2023 | kernel | Not Affected |
CVSS Scores
| Score Type | Score | Vector | |
|---|---|---|---|
| Amazon Linux | CVSSv3 | 6.1 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/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 |