CVE-2023-31436
Public on 2023-04-28
Modified on 2024-04-02
Description
qfq_change_class in net/sched/sch_qfq.c in the Linux kernel before 6.2.13 allows an out-of-bounds write because lmax can exceed QFQ_MIN_LMAX.
Severity
Medium
CVSS v3 Base Score
See breakdown
Affected Packages
| Platform | Package | Release Date | Advisory | Status |
|---|---|---|---|---|
| Amazon Linux 1 | kernel | 2023-05-11 | ALAS-2023-1744 | Fixed |
| Amazon Linux 2 - Core | kernel | 2023-05-11 | ALAS2-2023-2035 | Fixed |
| Amazon Linux 2 - Kernel-5.10 Extra | kernel | 2023-05-11 | ALAS2KERNEL-5.10-2023-032 | Fixed |
| Amazon Linux 2 - Kernel-5.15 Extra | kernel | 2023-05-11 | ALAS2KERNEL-5.15-2023-018 | Fixed |
| Amazon Linux 2 - Kernel-5.4 Extra | kernel | 2023-05-11 | ALAS2KERNEL-5.4-2023-045 | Fixed |
| Amazon Linux 2023 | kernel | 2023-05-11 | ALAS2023-2023-179 | Fixed |
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:N/I:L/A:H |
| NVD | CVSSv3 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |