CVE-2023-40546

Name	CVE-2023-40546
Description	A flaw was found in Shim when an error happened while creating a new ESL variable. If Shim fails to create the new variable, it tries to print an error message to the user; however, the number of parameters used by the logging function doesn't match the format string used by it, leading to a crash under certain circumstances.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-3813-1
Debian Bugs	1061519

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
shim (PTS)	bullseye	15.8-1~deb11u1	fixed
	bookworm	15.8-1~deb12u1	fixed
	sid, trixie	15.8-1	fixed

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

Package	Type	Release	Fixed Version	Origin	Debian Bugs
shim	source	buster	15.8-1~deb10u1	DLA-3813-1
shim	source	bullseye	15.8-1~deb11u1
shim	source	bookworm	15.8-1~deb12u1
shim	source	(unstable)	15.8-1		1061519

Notes

https://bugzilla.redhat.com/show_bug.cgi?id=2241796
https://github.com/rhboot/shim/commit/66e6579dbf921152f647a0c16da1d3b2f40861ca (15.8)
https://github.com/rhboot/shim/commit/dae82f6bd72cf600e5d48046ec674a441d0f49d7 (15.8)