CVE-2022-45939

Name	CVE-2022-45939
Description	GNU Emacs through 28.2 allows attackers to execute commands via shell metacharacters in the name of a source-code file, because lib-src/etags.c uses the system C library function in its implementation of the ctags program. For example, a victim may use the "ctags *" command (suggested in the ctags documentation) in a situation where the current working directory has contents that depend on untrusted input.
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-3257-1, DSA-5314-1
Debian Bugs	1025009

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
emacs (PTS)	bullseye (security), bullseye	1:27.1+1-3.1+deb11u5	fixed
	bookworm, bookworm (security)	1:28.2+1-15+deb12u3	fixed
	trixie	1:29.4+1-3	fixed
	sid	1:29.4+1-4	fixed
xemacs21 (PTS)	bullseye	21.4.24-9	vulnerable
	bookworm	21.4.24-11	fixed
	sid	21.4.24-12	fixed

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

Package	Type	Release	Fixed Version	Origin	Debian Bugs
emacs	source	buster	1:26.1+1-3.2+deb10u3	DLA-3257-1
emacs	source	bullseye	1:27.1+1-3.1+deb11u1	DSA-5314-1
emacs	source	(unstable)	1:28.2+1-8		1025009
xemacs21	source	(unstable)	21.4.24-11

Notes

[bullseye] - xemacs21 <no-dsa> (Minor issue)
[buster] - xemacs21 <no-dsa> (Minor issue)
https://git.savannah.gnu.org/cgit/emacs.git/commit/?id=d48bb4874bc6cd3e69c7a15fc3c91cc141025c51