CVE-2023-43907

Name	CVE-2023-43907
Description	OptiPNG v0.7.7 was discovered to contain a global buffer overflow via the 'buffer' variable at gifread.c.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	ELA-1044-1
Debian Bugs	1055668

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
optipng (PTS)	jessie, jessie (lts)	0.7.5-1+deb8u3	fixed
	stretch (security)	0.7.6-1+deb9u1	vulnerable
	stretch (lts), stretch	0.7.6-1+deb9u2	fixed
	buster, bullseye	0.7.7-1	vulnerable
	bookworm	0.7.7-2	vulnerable
	sid, trixie	0.7.8+ds-1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
optipng	source	jessie	0.7.5-1+deb8u3		ELA-1044-1
optipng	source	stretch	0.7.6-1+deb9u2		ELA-1044-1
optipng	source	(unstable)	0.7.8+ds-1	unimportant		1055668

Notes

https://sourceforge.net/p/optipng/bugs/87/
https://github.com/Frank-Z7/z-vulnerabilitys/blob/main/optipng-global-buffer-overflow1/optipng-global-buffer-overflow1.md
Crash in CLI tool, no security impact