CVE-2020-26541

NameCVE-2020-26541
DescriptionThe 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.
SourceCVE (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 PackageReleaseVersionStatus
linux (PTS)buster4.19.249-2vulnerable
buster (security)4.19.282-1vulnerable
bullseye5.10.178-3fixed
bullseye (security)5.10.179-1fixed
bookworm, sid6.1.27-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsourcestretch(not affected)
linuxsourcebullseye5.10.70-1
linuxsource(unstable)5.14.6-1

Notes

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

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