CVE-2020-27844

Name	CVE-2020-27844
Description	A flaw was found in openjpeg's src/lib/openjp2/t2.c in versions prior to 2.4.0. This flaw allows an attacker to provide crafted input to openjpeg during conversion and encoding, causing an out-of-bounds write. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, 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
openjpeg2 (PTS)	bookworm, bookworm (security)	2.5.0-2+deb12u3	fixed
	trixie (security), trixie	2.5.3-2.1~deb13u2	fixed
	forky, sid	2.5.4-1.1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
openjpeg2	source	(unstable)	(not affected)

Notes

- openjpeg2 <not-affected> (Vulnerable code introduced and fixed in 2.4.0)
https://github.com/uclouvain/openjpeg/issues/1299
Fixed by: https://github.com/uclouvain/openjpeg/commit/73fdf28342e4594019af26eb6a347a34eceb6296 (v2.4.0)
Introduced by: https://github.com/uclouvain/openjpeg/commit/4edb8c83374f52cd6a8f2c7c875e8ffacccb5fa5