Use After Free Affecting python3-perf package, versions <0:4.18.0-425.3.1.el8


Severity

Recommended
medium

Based on CentOS security rating.

Threat Intelligence

EPSS
0.5% (40th percentile)

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  • Snyk IDSNYK-CENTOS8-PYTHON3PERF-2438717
  • 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 Centos:8 python3-perf to version 0:4.18.0-425.3.1.el8 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python3-perf package and not the python3-perf package as distributed by Centos. See How to fix? for Centos: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 Base Scores

version 3.1