CVE-2020-10767 Affecting kernel package, versions <0:4.14.186-146.268.amzn2


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-AMZN2-KERNEL-1682647
  • published27 Sept 2021
  • disclosed15 Sept 2020

Introduced: 15 Sep 2020

CVE-2020-10767  (opens in a new tab)
First added by Snyk

How to fix?

Upgrade Amazon-Linux:2 kernel to version 0:4.14.186-146.268.amzn2 or higher.
This issue was patched in ALAS2-2020-1465.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel package and not the kernel package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

A flaw was found in the Linux kernel before 5.8-rc1 in the implementation of the Enhanced IBPB (Indirect Branch Prediction Barrier). The IBPB mitigation will be disabled when STIBP is not available or when the Enhanced Indirect Branch Restricted Speculation (IBRS) is available. This flaw allows a local attacker to perform a Spectre V2 style attack when this configuration is active. The highest threat from this vulnerability is to confidentiality.

CVSS Scores

version 3.1