CVE-2022-32250
Public on 2022-06-02
Modified on 2022-10-25
Description
net/netfilter/nf_tables_api.c in the Linux kernel through 5.18.1 allows a local user (able to create user/net namespaces) to escalate privileges to root because an incorrect NFT_STATEFUL_EXPR check leads to a use-after-free.
Severity
Important
CVSS v3 Base Score
See breakdown
Affected Packages
| Platform | Package | Release Date | Advisory | Status |
|---|---|---|---|---|
| Amazon Linux 1 | kernel | 2022-06-30 | ALAS-2022-1604 | Fixed |
| Amazon Linux 2 - Core | kernel | 2022-07-06 | ALAS2-2022-1813 | Fixed |
| Amazon Linux 2 - Kernel-5.10 Extra | kernel | 2022-06-30 | ALAS2KERNEL-5.10-2022-015 | Fixed |
| Amazon Linux 2 - Kernel-5.15 Extra | kernel | 2022-06-30 | ALAS2KERNEL-5.15-2022-002 | Fixed |
| Amazon Linux 2 - Kernel-5.4 Extra | kernel | 2022-06-30 | ALAS2KERNEL-5.4-2022-028 | Fixed |
| Amazon Linux 2023 | kernel | 2023-02-17 | ALAS2023-2023-070 | Fixed |
CVSS Scores
| Score Type | Score | Vector | |
|---|---|---|---|
| Amazon Linux | CVSSv2 | 7.2 | AV:L/AC:L/Au:N/C:C/I:C/A:C |
| 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 | CVSSv2 | 7.2 | AV:L/AC:L/Au:N/C:C/I:C/A:C |
| NVD | CVSSv3 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |