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Race Condition Affecting kernel-uek package, versions <0:2.6.39-400.307.1.el5uek

Severity

 Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.35% (27th percentile)

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  • Snyk IDSNYK-ORACLE5-KERNELUEK-2543793
  • published10 Apr 2022
  • disclosed3 Oct 2018
Report a new vulnerability Found a mistake?

Introduced: 3 Oct 2018

CVE-2018-17972  (opens in a new tab)
CWE-362  (opens in a new tab)

How to fix?

Upgrade Oracle:5 kernel-uek to version 0:2.6.39-400.307.1.el5uek or higher.
This issue was patched in ELSA-2019-4577.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-uek package and not the kernel-uek package as distributed by Oracle. See How to fix? for Oracle:5 relevant fixed versions and status.

An issue was discovered in the proc_pid_stack function in fs/proc/base.c in the Linux kernel through 4.18.11. It does not ensure that only root may inspect the kernel stack of an arbitrary task, allowing a local attacker to exploit racy stack unwinding and leak kernel task stack contents.

References