Race Condition Affecting python3-perf package, versions <0:4.18.0-372.9.1.el8


Severity

Recommended
0.0
high
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.04% (12th percentile)

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  • Snyk IDSNYK-CENTOS8-PYTHON3PERF-2320255
  • published15 Dec 2021
  • disclosed3 Dec 2021

Introduced: 3 Dec 2021

CVE-2021-4083  (opens in a new tab)
CWE-362  (opens in a new tab)

How to fix?

Upgrade Centos:8 python3-perf to version 0:4.18.0-372.9.1.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 read-after-free memory flaw was found in the Linux kernel's garbage collection for Unix domain socket file handlers in the way users call close() and fget() simultaneously and can potentially trigger a race condition. This flaw allows a local user to crash the system or escalate their privileges on the system. This flaw affects Linux kernel versions prior to 5.16-rc4.

CVSS Scores

version 3.1