CVE-2023-6111
Public on 2023-11-14
Modified on 2024-02-03
Description
A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation.
The function nft_trans_gc_catchall did not remove the catchall set element from the catchall_list when the argument sync is true, making it possible to free a catchall set element many times.
We recommend upgrading past commit 93995bf4af2c5a99e2a87f0cd5ce547d31eb7630.
The function nft_trans_gc_catchall did not remove the catchall set element from the catchall_list when the argument sync is true, making it possible to free a catchall set element many times.
We recommend upgrading past commit 93995bf4af2c5a99e2a87f0cd5ce547d31eb7630.
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 | Not Affected | ||
| Amazon Linux 2 - Kernel-5.4 Extra | kernel | Not Affected | ||
| Amazon Linux 2 - Kernel-5.15 Extra | kernel | 2023-11-29 | ALAS2KERNEL-5.15-2023-031 | Fixed |
| Amazon Linux 2023 | kernel | 2023-12-13 | ALAS2023-2023-461 | Fixed |
| Amazon Linux 2023 | kernel-livepatch-6.1.56-82.125 | 2023-12-06 | ALAS2023LIVEPATCH-2023-021 | Fixed |
| Amazon Linux 2023 | kernel-livepatch-6.1.59-84.139 | 2023-12-06 | ALAS2023LIVEPATCH-2023-022 | Fixed |
| Amazon Linux 2023 | kernel-livepatch-6.1.61-85.141 | 2023-12-06 | ALAS2023LIVEPATCH-2023-020 | 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 |