CVE-2023-4273
Public on 2023-08-09
Modified on 2024-03-27
Description
A flaw was found in the exFAT driver of the Linux kernel. The vulnerability exists in the implementation of the file name reconstruction function, which is responsible for reading file name entries from a directory index and merging file name parts belonging to one file into a single long file name. Since the file name characters are copied into a stack variable, a local privileged attacker could use this flaw to overflow the kernel stack.
Severity
CVSS v3 Base Score
See breakdown
Affected Packages
Platform | Package | Release Date | Advisory | Status |
---|---|---|---|---|
Amazon Linux 1 | kernel | Not Affected | ||
Amazon Linux 2 - Core | kernel | Not Affected | ||
Amazon Linux 2 - Kernel-5.4 Extra | kernel | Not Affected | ||
Amazon Linux 2 - Kernel-5.10 Extra | kernel | 2023-08-31 | ALAS2KERNEL-5.10-2023-039 | Fixed |
Amazon Linux 2 - Kernel-5.15 Extra | kernel | 2023-08-31 | ALAS2KERNEL-5.15-2023-026 | Fixed |
Amazon Linux 2023 | kernel | 2023-08-31 | ALAS2023-2023-330 | Fixed |
CVSS Scores
Score Type | Score | Vector | |
---|---|---|---|
Amazon Linux | CVSSv3 | 6.0 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N |
NVD | CVSSv3 | 6.7 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |