CVE-2023-1095
Public on 2023-02-28
Modified on 2024-04-30
Description
In nf_tables_updtable, if nf_tables_table_enable returns an error, nft_trans_destroy is called to free the transaction object. nft_trans_destroy() calls list_del(), but the transaction was never placed on a list -- the list head is all zeroes, this results in a NULL pointer dereference.
Severity
Medium
CVSS v3 Base Score
See breakdown
Affected Packages
| Platform | Package | Release Date | Advisory | Status |
|---|---|---|---|---|
| Amazon Linux 1 | kernel | No Fix Planned | ||
| Amazon Linux 2 - Core | kernel | 2022-09-01 | ALAS2-2022-1838 | Fixed |
| Amazon Linux 2 - Kernel-5.10 Extra | kernel | 2022-09-30 | ALAS2KERNEL-5.10-2022-020 | Fixed |
| Amazon Linux 2 - Kernel-5.15 Extra | kernel | 2022-09-30 | ALAS2KERNEL-5.15-2022-008 | Fixed |
| Amazon Linux 2 - Kernel-5.4 Extra | kernel | 2022-09-30 | ALAS2KERNEL-5.4-2022-036 | Fixed |
| Amazon Linux 2023 | kernel | Not Affected |
CVSS Scores
| Score Type | Score | Vector | |
|---|---|---|---|
| Amazon Linux | CVSSv3 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| NVD | CVSSv3 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |