CVE-2020-10767 Affecting linux-4.19 package, versions <4.19.132-1~deb9u2


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.04% (5th percentile)

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  • Snyk IDSNYK-DEBIAN9-LINUX419-598276
  • published10 Jun 2020
  • disclosed15 Sept 2020

Introduced: 10 Jun 2020

CVE-2020-10767  (opens in a new tab)

How to fix?

Upgrade Debian:9 linux-4.19 to version 4.19.132-1~deb9u2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream linux-4.19 package and not the linux-4.19 package as distributed by Debian. See How to fix? for Debian:9 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 Base Scores

version 3.1