CVE-2023-6111

high

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.

References

https://lists.fedoraproject.org/archives/list/[email protected]/message/YQ7JVDEDZV5SNHG5EW7RHKK2ZN56HSGB/

https://lists.fedoraproject.org/archives/list/[email protected]/message/IG6IF3FUY7LVZJMFRPANAU4L4PSJ3ESQ/

https://lists.fedoraproject.org/archives/list/[email protected]/message/3S55P23EYAWDHXZPJEVTGIRZZRICYI3Z/

https://lists.fedoraproject.org/archives/list/[email protected]/message/3OXWBKK7RTQOGGDLQGCZFS753VLGS2GD/

https://kernel.dance/93995bf4af2c5a99e2a87f0cd5ce547d31eb7630

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=93995bf4af2c5a99e2a87f0cd5ce547d31eb7630

Details

Source: Mitre, NVD

Published: 2023-11-14

Updated: 2024-08-27

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C

Severity: Medium

CVSS v3

Base Score: 7.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity: High