Use After Free Affecting kernel-doc package, versions <0:4.18.0-425.3.1.el8


Severity

Recommended
medium

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
0.05% (19th percentile)

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  • Snyk IDSNYK-ROCKY8-KERNELDOC-3192337
  • published5 Jan 2023
  • disclosed29 Mar 2022

Introduced: 29 Mar 2022

CVE-2022-1055  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Rocky-Linux:8 kernel-doc to version 0:4.18.0-425.3.1.el8 or higher.
This issue was patched in RLSA-2022:7683.

NVD Description

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

A use-after-free exists in the Linux Kernel in tc_new_tfilter that could allow a local attacker to gain privilege escalation. The exploit requires unprivileged user namespaces. We recommend upgrading past commit 04c2a47ffb13c29778e2a14e414ad4cb5a5db4b5

CVSS Scores

version 3.1