CVE-2023-32233
Public on 2023-05-08
Modified on 2024-05-08
Description
In the Linux kernel through 6.3.1, a use-after-free in Netfilter nf_tables when processing batch requests can be abused to perform arbitrary read and write operations on kernel memory. Unprivileged local users can obtain root privileges. This occurs because anonymous sets are mishandled.
Severity
Important
CVSS v3 Base Score
See breakdown
Affected Packages
| Platform | Package | Release Date | Advisory | Status |
|---|---|---|---|---|
| Amazon Linux 1 | kernel | 2023-05-25 | ALAS-2023-1750 | Fixed |
| Amazon Linux 2 - Core | kernel | 2023-05-25 | ALAS2-2023-2050 | Fixed |
| Amazon Linux 2 - Kernel-5.10 Extra | kernel | 2023-05-25 | ALAS2KERNEL-5.10-2023-033 | Fixed |
| Amazon Linux 2 - Kernel-5.15 Extra | kernel | 2023-05-25 | ALAS2KERNEL-5.15-2023-020 | Fixed |
| Amazon Linux 2 - Kernel-5.4 Extra | kernel | 2023-05-25 | ALAS2KERNEL-5.4-2023-046 | Fixed |
| Amazon Linux 2023 | kernel | 2023-05-25 | ALAS2023-2023-184 | Fixed |
| Amazon Linux 2 - Livepatch Extra | kernel-livepatch-5.10.167-147.601 | 2023-05-25 | ALAS2LIVEPATCH-2023-127 | Fixed |
| Amazon Linux 2 - Livepatch Extra | kernel-livepatch-5.10.173-154.642 | 2023-05-25 | ALAS2LIVEPATCH-2023-126 | Fixed |
| Amazon Linux 2 - Livepatch Extra | kernel-livepatch-5.10.176-157.645 | 2023-05-25 | ALAS2LIVEPATCH-2023-125 | Fixed |
| Amazon Linux 2 - Livepatch Extra | kernel-livepatch-5.10.177-158.645 | 2023-05-25 | ALAS2LIVEPATCH-2023-124 | Fixed |
| Amazon Linux 2 - Livepatch Extra | kernel-livepatch-5.10.178-162.673 | 2023-05-25 | ALAS2LIVEPATCH-2023-123 | Fixed |
| Amazon Linux 2 - Livepatch Extra | kernel-livepatch-5.10.179-166.674 | 2023-05-25 | ALAS2LIVEPATCH-2023-122 | Fixed |
| Amazon Linux 2023 | kernel-livepatch-6.1.15-28.43 | 2023-05-25 | ALAS2023LIVEPATCH-2023-009 | Fixed |
| Amazon Linux 2023 | kernel-livepatch-6.1.19-30.43 | 2023-05-25 | ALAS2023LIVEPATCH-2023-008 | Fixed |
| Amazon Linux 2023 | kernel-livepatch-6.1.21-1.45 | 2023-05-25 | ALAS2023LIVEPATCH-2023-007 | Fixed |
| Amazon Linux 2023 | kernel-livepatch-6.1.23-36.46 | 2023-05-25 | ALAS2023LIVEPATCH-2023-006 | Fixed |
| Amazon Linux 2023 | kernel-livepatch-6.1.25-37.47 | 2023-05-25 | ALAS2023LIVEPATCH-2023-005 | Fixed |
| Amazon Linux 2023 | kernel-livepatch-6.1.27-43.48 | 2023-05-25 | ALAS2023LIVEPATCH-2023-004 | Fixed |
CVSS Scores
| Score Type | Score | Vector | |
|---|---|---|---|
| Amazon Linux | CVSSv3 | 7.8 | 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 |