Use After Free Affecting kernel-uek package, versions <0:5.4.17-2011.3.2.1.el8uek


Severity

Recommended
0.0
high
0
10

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.71% (49th percentile)

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  • Snyk IDSNYK-ORACLE8-KERNELUEK-2575641
  • published10 Apr 2022
  • disclosed5 May 2020

Introduced: 5 May 2020

CVE-2020-12657  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Oracle:8 kernel-uek to version 0:5.4.17-2011.3.2.1.el8uek or higher.
This issue was patched in ELSA-2020-5714.

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:8 relevant fixed versions and status.

An issue was discovered in the Linux kernel before 5.6.5. There is a use-after-free in block/bfq-iosched.c related to bfq_idle_slice_timer_body.

CVSS Base Scores

version 3.1