Use After Free Affecting perf package, versions <0:5.14.0-70.22.1.el9_0


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-RHEL9-PERF-5571253
  • published1 Apr 2022
  • disclosed31 Jan 2022

Introduced: 31 Jan 2022

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

How to fix?

Upgrade RHEL:9 perf to version 0:5.14.0-70.22.1.el9_0 or higher.
This issue was patched in RHSA-2022:6003.

NVD Description

Note: Versions mentioned in the description apply only to the upstream perf package and not the perf package as distributed by RHEL. See How to fix? for RHEL:9 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