Use After Free Affecting kernel-debug-devel package, versions <0:4.18.0-240.el8


Severity

Recommended
medium

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.83% (53rd percentile)

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  • Snyk IDSNYK-ORACLE8-KERNELDEBUGDEVEL-2562310
  • published10 Apr 2022
  • disclosed3 Dec 2020

Introduced: 3 Dec 2020

CVE-2020-14381  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Oracle:8 kernel-debug-devel to version 0:4.18.0-240.el8 or higher.
This issue was patched in ELSA-2020-4431.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-debug-devel package and not the kernel-debug-devel package as distributed by Oracle. See How to fix? for Oracle:8 relevant fixed versions and status.

A flaw was found in the Linux kernel’s futex implementation. This flaw allows a local attacker to corrupt system memory or escalate their privileges when creating a futex on a filesystem that is about to be unmounted. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

CVSS Base Scores

version 3.1