CVE-2020-27823

Name	CVE-2020-27823
Description	A flaw was found in OpenJPEG’s encoder. This flaw allows an attacker to pass specially crafted x,y offset input to OpenJPEG to use during encoding. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
References	DLA-2550-1, DSA-4882-1
NVD severity	medium

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
openjpeg2 (PTS)	stretch	2.1.2-1.1+deb9u4	vulnerable
	stretch (security)	2.1.2-1.1+deb9u6	fixed
	buster, buster (security)	2.3.0-2+deb10u2	fixed
	bookworm, sid, bullseye	2.4.0-3	fixed

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

Package	Type	Release	Fixed Version	Origin
openjpeg2	source	stretch	2.1.2-1.1+deb9u6	DLA-2550-1
openjpeg2	source	buster	2.3.0-2+deb10u2	DSA-4882-1
openjpeg2	source	(unstable)	2.4.0-1

https://github.com/uclouvain/openjpeg/issues/1284
https://github.com/uclouvain/openjpeg/commit/b2072402b7e14d22bba6fb8cde2a1e9996e9a919 (v2.4.0)