CVE-2020-26541

Name	CVE-2020-26541
Description	The Linux kernel through 5.8.13 does not properly enforce the Secure Boot Forbidden Signature Database (aka dbx) protection mechanism. This affects certs/blacklist.c and certs/system_keyring.c.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
linux (PTS)	buster	4.19.249-2	vulnerable
	buster (security)	4.19.260-1	vulnerable
	bullseye	5.10.140-1	fixed
	bullseye (security)	5.10.136-1	fixed
	bookworm, sid	5.19.11-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version
linux	source	stretch	(not affected)
linux	source	bullseye	5.10.70-1
linux	source	(unstable)	5.14.6-1

[stretch] - linux <not-affected> (Secure Boot key import not supported)
https://lkml.org/lkml/2020/9/15/1871