CVE-2004-2264

Name	CVE-2004-2264
Description	Format string bug in the open_altfile function in filename.c for GNU less 382, 381, and 358 might allow local users to cause a denial of service or possibly execute arbitrary code via format strings in the LESSOPEN environment variable. NOTE: since less is not setuid or setgid, then this is not a vulnerability unless there are plausible scenarios under which privilege boundaries could be crossed
Source	CVE (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 Package	Release	Version	Status
less (PTS)	jessie, jessie (lts)	458-3+deb8u2	fixed
	stretch (lts), stretch	481-2.1+deb9u1	fixed
	buster (security), buster, buster (lts)	487-0.1+deb10u1	fixed
	bullseye (security), bullseye	551-2+deb11u2	fixed
	bookworm (security), bookworm	590-2.1~deb12u2	fixed
	sid, trixie	643-1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
less	source	(unstable)	(not affected)

- less <not-affected> (less is not suid, explotability unlikely)