CVE-2020-10768 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% (16th percentile)

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  • Snyk IDSNYK-DEBIAN9-LINUX419-598283
  • published10 Jun 2020
  • disclosed16 Sept 2020

Introduced: 10 Jun 2020

CVE-2020-10768  (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 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 Base Scores

version 3.1