Improper Initialization Affecting kernel-uek-doc package, versions <0:4.14.35-2047.512.6.el7uek


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-ORACLE7-KERNELUEKDOC-2803259
  • published10 Apr 2022
  • disclosed27 Sept 2021

Introduced: 27 Sep 2021

CVE-2021-20317  (opens in a new tab)
CWE-665  (opens in a new tab)

How to fix?

Upgrade Oracle:7 kernel-uek-doc to version 0:4.14.35-2047.512.6.el7uek or higher.
This issue was patched in ELSA-2022-9313.

NVD Description

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

A flaw was found in the Linux kernel. A corrupted timer tree caused the task wakeup to be missing in the timerqueue_add function in lib/timerqueue.c. This flaw allows a local attacker with special user privileges to cause a denial of service, slowing and eventually stopping the system while running OSP.

CVSS Scores

version 3.1