CVE-2023-3812
Public on 2023-07-21
Modified on 2024-03-01
Description
An out-of-bounds memory access flaw was found in the Linux kernel’s TUN/TAP device driver functionality in how a user generates a malicious (too big) networking packet when napi frags is enabled. This flaw allows a local user to crash or potentially escalate their privileges on the system.
Severity
Important
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-5.10 Extra | kernel | 2022-12-01 | ALAS2KERNEL-5.10-2022-023 | Fixed |
| Amazon Linux 2 - Kernel-5.15 Extra | kernel | 2022-12-01 | ALAS2KERNEL-5.15-2022-011 | Fixed |
| Amazon Linux 2 - Kernel-5.4 Extra | kernel | 2022-12-01 | ALAS2KERNEL-5.4-2022-039 | Fixed |
| Amazon Linux 2023 | kernel | Not Affected |
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 |