Use After Free Affecting python3-perf package, versions <0:4.18.0-477.10.1.el8_8


Severity

Recommended
high

Based on CentOS security rating.

Threat Intelligence

EPSS
0.05% (16th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk Learn

Learn about Use After Free vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-CENTOS8-PYTHON3PERF-3034497
  • published27 Sept 2022
  • disclosed6 Jul 2022

Introduced: 6 Jul 2022

CVE-2022-39188  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Centos:8 python3-perf to version 0:4.18.0-477.10.1.el8_8 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.

An issue was discovered in include/asm-generic/tlb.h in the Linux kernel before 5.19. Because of a race condition (unmap_mapping_range versus munmap), a device driver can free a page while it still has stale TLB entries. This only occurs in situations with VM_PFNMAP VMAs.

CVSS Scores

version 3.1