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 code/issues, web search, more)
NVD severity	medium

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
linux (PTS)	stretch	4.9.228-1	fixed
	stretch (security)	4.9.210-1+deb9u1	fixed
	buster	4.19.146-1	vulnerable
	buster (security)	4.19.152-1	vulnerable
	bullseye, sid	5.9.1-1	vulnerable

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
linux	source	stretch	(not affected)
linux	source	(unstable)	(unfixed)

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