CVE-2021-20304

Name	CVE-2021-20304
Description	A flaw was found in OpenEXR's hufDecode functionality. This flaw allows an attacker who can pass a crafted file to be processed by OpenEXR, to trigger an undefined right shift error. The highest threat from this vulnerability is to system availability.
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
openexr (PTS)	bullseye (security), bullseye	2.5.4-2+deb11u1	fixed
	bookworm	3.1.5-5	fixed
	sid, trixie	3.1.5-5.1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
openexr	source	(unstable)	2.5.4-1	unimportant

Notes

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26229
https://github.com/AcademySoftwareFoundation/openexr/commit/51a92d67f53c08230734e74564c807043cbfe41e
https://github.com/AcademySoftwareFoundation/openexr/pull/849
Negligible security impact