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CVE

CWE

Training

CVE-2023-4244

Published: Sep 6, 2023

Modified: Feb 13, 2025

PUBLISHED

CVSS v3.1

7.8

HIGH

Description

A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation. Due to a race condition between nf_tables netlink control plane transaction and nft_set element garbage collection, it is possible to underflow the reference counter causing a use-after-free vulnerability. We recommend upgrading past commit 3e91b0ebd994635df2346353322ac51ce84ce6d8.

Vendor	Product	Versions
Linux	Kernel	affected `0.0 - < 6.5`

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

References

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3e91b0ebd994635df2346353322ac51ce84ce6d8

patch

https://kernel.dance/3e91b0ebd994635df2346353322ac51ce84ce6d8

https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html

https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html

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