CVE-2021-20315

NameCVE-2021-20315
DescriptionA locking protection bypass flaw was found in some versions of gnome-shell as shipped within CentOS Stream 8, when the "Application menu" or "Window list" GNOME extensions are enabled. This flaw allows a physical attacker who has access to a locked system to kill existing applications and start new ones as the locked user, even if the session is still locked.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
gnome-shell (PTS)bullseye (security), bullseye3.38.6-1~deb11u2fixed
bookworm, bookworm (security)43.9-0+deb12u2fixed
trixie44.9-2fixed
sid46.3.1-2fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
gnome-shellsource(unstable)(not affected)

Notes

- gnome-shell <not-affected> (Red Hat-specific backport error to CentOS 8 Streams)
https://bugzilla.redhat.com/show_bug.cgi?id=2006285

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