CVE-2020-27842

Name	CVE-2020-27842
Description	There's a flaw in openjpeg's t2 encoder in versions prior to 2.4.0. An attacker who is able to provide crafted input to be processed by openjpeg could cause a null pointer dereference. The highest impact of this flaw is to application 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)
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+deb9u5	vulnerable
	buster	2.3.0-2+deb10u1	vulnerable
	bullseye, sid	2.3.1-1	vulnerable

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
openjpeg2	source	(unstable)	(unfixed)

[buster] - openjpeg2 <no-dsa> (Minor issue)
https://github.com/uclouvain/openjpeg/issues/1294