CVE-2023-23454
Public on 2023-01-12
Modified on 2024-03-12
Description
cbq_classify in net/sched/sch_cbq.c in the Linux kernel through 6.1.4 allows attackers to cause a denial of service (slab-out-of-bounds read) because of type confusion (non-negative numbers can sometimes indicate a TC_ACT_SHOT condition rather than valid classification results).
Severity
Medium
CVSS v3 Base Score
See breakdown
Affected Packages
| Platform | Package | Release Date | Advisory | Status |
|---|---|---|---|---|
| Amazon Linux 1 | kernel | 2023-04-27 | ALAS-2023-1735 | Fixed |
| Amazon Linux 2 - Core | kernel | 2023-04-27 | ALAS2-2023-2027 | Fixed |
| Amazon Linux 2 - Kernel-5.10 Extra | kernel | 2023-01-31 | ALAS2KERNEL-5.10-2023-026 | Fixed |
| Amazon Linux 2 - Kernel-5.15 Extra | kernel | 2023-01-31 | ALAS2KERNEL-5.15-2023-013 | Fixed |
| Amazon Linux 2 - Kernel-5.4 Extra | kernel | 2023-02-17 | ALAS2KERNEL-5.4-2023-042 | Fixed |
| Amazon Linux 2023 | kernel | Pending Fix |
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 |