CVE-2020-10766 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
0.09% (39th percentile)

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  • Snyk IDSNYK-DEBIAN9-LINUX419-598282
  • published10 Jun 2020
  • disclosed15 Sept 2020

Introduced: 10 Jun 2020

CVE-2020-10766  (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 logic bug flaw was found in Linux kernel before 5.8-rc1 in the implementation of SSBD. A bug in the logic handling allows an attacker with a local account to disable SSBD protection during a context switch when additional speculative execution mitigations are in place. This issue was introduced when the per task/process conditional STIPB switching was added on top of the existing SSBD switching. The highest threat from this vulnerability is to confidentiality.

CVSS Base Scores

version 3.1