Use After Free Affecting kernel-devel package, versions <0:4.18.0-553.el8_10


Severity

Recommended
medium

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-ROCKY8-KERNELDEVEL-7263532
  • published15 Jun 2024
  • disclosed6 Sept 2023

Introduced: 6 Sep 2023

CVE-2023-4244  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Rocky-Linux:8 kernel-devel to version 0:4.18.0-553.el8_10 or higher.
This issue was patched in RLSA-2024:3138.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-devel package and not the kernel-devel package as distributed by Rocky-Linux. See How to fix? for Rocky-Linux:8 relevant fixed versions and status.

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.

CVSS Scores

version 3.1