Use After Free Affecting perf package, versions <0:3.10.0-1160.el7


Severity

Recommended
0.0
high
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.14% (51st percentile)

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  • Snyk IDSNYK-CENTOS7-PERF-2174817
  • published26 Jul 2021
  • disclosed6 Nov 2019

Introduced: 6 Nov 2019

CVE-2019-19807  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Centos:7 perf to version 0:3.10.0-1160.el7 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream perf package and not the perf package as distributed by Centos. See How to fix? for Centos:7 relevant fixed versions and status.

In the Linux kernel before 5.3.11, sound/core/timer.c has a use-after-free caused by erroneous code refactoring, aka CID-e7af6307a8a5. This is related to snd_timer_open and snd_timer_close_locked. The timeri variable was originally intended to be for a newly created timer instance, but was used for a different purpose after refactoring.

CVSS Scores

version 3.1