CVEvulnerability

CVE-2023-3777

7.8 HIGH Published 2023-09-06 Modified 2026-10-14 Official page ↗
Status
Modified
Published
2023-09-06
Last modified
2026-10-14
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1 ([email protected])
7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-416

Description

A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation. When nf_tables_delrule() is flushing table rules, it is not checked whether the chain is bound and the chain's owner rule can also release the objects in certain circumstances. We recommend upgrading past commit 6eaf41e87a223ae6f8e7a28d6e78384ad7e407f8.

Affected configurations

• linux linux kernel (>= 5.9 < 5.10.188) • linux linux kernel (>= 5.11 < 5.15.123) • linux linux kernel (>= 5.16 < 6.1.42) • linux linux kernel (>= 6.2 < 6.4.7) • debian debian linux 12.0 • canonical ubuntu linux 14.04 • canonical ubuntu linux 16.04 • canonical ubuntu linux 18.04 • canonical ubuntu linux 20.04 • canonical ubuntu linux 22.04

Related

Weakness · CWE (1)

References