CVE-2020-36311 Affecting kernel-uek-devel package, versions <0:5.4.17-2102.205.7.2.el7uek


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-ORACLE7-KERNELUEKDEVEL-2599949
  • published10 Apr 2022
  • disclosed7 Apr 2021

Introduced: 7 Apr 2021

CVE-2020-36311  (opens in a new tab)

How to fix?

Upgrade Oracle:7 kernel-uek-devel to version 0:5.4.17-2102.205.7.2.el7uek or higher.
This issue was patched in ELSA-2021-9450.

NVD Description

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

An issue was discovered in the Linux kernel before 5.9. arch/x86/kvm/svm/sev.c allows attackers to cause a denial of service (soft lockup) by triggering destruction of a large SEV VM (which requires unregistering many encrypted regions), aka CID-7be74942f184.

CVSS Scores

version 3.1