CVE-2020-10768 Affecting kernel-uek-debug-devel package, versions <0:5.4.17-2011.5.3.el8uek


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.04% (15th percentile)

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  • Snyk IDSNYK-ORACLE8-KERNELUEKDEBUGDEVEL-2578400
  • published10 Apr 2022
  • disclosed16 Sept 2020

Introduced: 16 Sep 2020

CVE-2020-10768  (opens in a new tab)

How to fix?

Upgrade Oracle:8 kernel-uek-debug-devel to version 0:5.4.17-2011.5.3.el8uek or higher.
This issue was patched in ELSA-2020-5805.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-uek-debug-devel package and not the kernel-uek-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 before 5.8-rc1 in the prctl() function, where it can be used to enable indirect branch speculation after it has been disabled. This call incorrectly reports it as being 'force disabled' when it is not and opens the system to Spectre v2 attacks. The highest threat from this vulnerability is to confidentiality.

CVSS Scores

version 3.1