CVE-2023-6931
Public on 2023-12-19
Modified on 2024-02-02
Description
A heap out-of-bounds write vulnerability in the Linux kernel's Performance Events system component can be exploited to achieve local privilege escalation.
A perf_event's read_size can overflow, leading to an heap out-of-bounds increment or write in perf_read_group().
We recommend upgrading past commit 382c27f4ed28f803b1f1473ac2d8db0afc795a1b.
A perf_event's read_size can overflow, leading to an heap out-of-bounds increment or write in perf_read_group().
We recommend upgrading past commit 382c27f4ed28f803b1f1473ac2d8db0afc795a1b.
Severity
Important
CVSS v3 Base Score
See breakdown
Affected Packages
| Platform | Package | Release Date | Advisory | Status |
|---|---|---|---|---|
| Amazon Linux 1 | kernel | 2024-02-01 | ALAS-2024-1912 | Fixed |
| Amazon Linux 2 - Core | kernel | 2024-02-01 | ALAS2-2024-2443 | Fixed |
| Amazon Linux 2 - Kernel-5.10 Extra | kernel | 2024-01-05 | ALAS2KERNEL-5.10-2024-045 | Fixed |
| Amazon Linux 2 - Kernel-5.10 Extra | kernel | 2024-01-19 | ALAS2KERNEL-5.10-2024-047 | Fixed |
| Amazon Linux 2 - Kernel-5.15 Extra | kernel | 2024-01-05 | ALAS2KERNEL-5.15-2024-033 | Fixed |
| Amazon Linux 2 - Kernel-5.15 Extra | kernel | 2024-01-19 | ALAS2KERNEL-5.15-2024-035 | Fixed |
| Amazon Linux 2 - Kernel-5.4 Extra | kernel | 2024-01-03 | ALAS2KERNEL-5.4-2024-057 | Fixed |
| Amazon Linux 2023 | kernel | 2024-01-19 | ALAS2023-2024-488 | Fixed |
CVSS Scores
| Score Type | Score | Vector | |
|---|---|---|---|
| Amazon Linux | CVSSv3 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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 |