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


Severity

Recommended
0.0
high
0
10

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.55% (42nd percentile)

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  • Snyk IDSNYK-ORACLE7-KERNEL-2563978
  • published10 Apr 2022
  • disclosed15 Dec 2019

Introduced: 15 Dec 2019

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

How to fix?

Upgrade Oracle:7 kernel to version 0:3.10.0-1160.el7 or higher.
This issue was patched in ELSA-2020-4060.

NVD Description

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

version 3.1