CVE-2023-3567
Public on 2023-07-11
Modified on 2024-03-27
Description
A use-after-free flaw was found in vcs_read in drivers/tty/vt/vc_screen.c in vc_screen in the Linux Kernel. In this flaw an attacker with local user access may lead to a system crash or a leak of internal kernel information.
Severity
Medium
CVSS v3 Base Score
See breakdown
Affected Packages
| Platform | Package | Release Date | Advisory | Status |
|---|---|---|---|---|
| Amazon Linux 1 | kernel | 2023-11-29 | ALAS-2023-1897 | Fixed |
| Amazon Linux 2 - Core | kernel | 2023-11-29 | ALAS2-2023-2359 | Fixed |
| Amazon Linux 2 - Kernel-5.10 Extra | kernel | 2023-03-17 | ALAS2KERNEL-5.10-2023-028 | Fixed |
| Amazon Linux 2 - Kernel-5.10 Extra | kernel | 2023-06-21 | ALAS2KERNEL-5.10-2023-034 | 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 | 2023-06-21 | ALAS2KERNEL-5.15-2023-021 | 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 | 2023-03-17 | ALAS2KERNEL-5.4-2023-043 | Fixed |
| Amazon Linux 2 - Kernel-5.4 Extra | kernel | 2023-06-21 | ALAS2KERNEL-5.4-2023-047 | Fixed |
| Amazon Linux 2023 | kernel | 2023-03-11 | ALAS2023-2023-132 | Fixed |
| Amazon Linux 2023 | kernel | 2023-06-21 | ALAS2023-2023-228 | Fixed |
CVSS Scores
| Score Type | Score | Vector | |
|---|---|---|---|
| Amazon Linux | CVSSv3 | 6.7 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
| NVD | CVSSv3 | 7.1 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H |