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 severity
Important
CVSS v3 Base Score
7.8
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