Race Condition Affecting kernel-uek-devel package, versions <0:3.8.13-118.21.4.el7uek


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.18% (57th percentile)

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  • Snyk IDSNYK-ORACLE7-KERNELUEKDEVEL-2531041
  • published10 Apr 2022
  • disclosed27 Apr 2016

Introduced: 27 Apr 2016

CVE-2016-2547  (opens in a new tab)
CWE-362  (opens in a new tab)

How to fix?

Upgrade Oracle:7 kernel-uek-devel to version 0:3.8.13-118.21.4.el7uek or higher.
This issue was patched in ELSA-2018-4134.

NVD Description

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

sound/core/timer.c in the Linux kernel before 4.4.1 employs a locking approach that does not consider slave timer instances, which allows local users to cause a denial of service (race condition, use-after-free, and system crash) via a crafted ioctl call.

CVSS Scores

version 3.1