CVE-2020-11765

Name	CVE-2020-11765
Description	An issue was discovered in OpenEXR before 2.4.1. There is an off-by-one error in use of the ImfXdr.h read function by DwaCompressor::Classifier::Classifier, leading to an out-of-bounds read.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-2358-1, DSA-4755-1
Debian Bugs	959444

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	Origin	Debian Bugs
openexr	source	experimental	2.5.0-1
openexr	source	jessie	(not affected)
openexr	source	stretch	2.2.0-11+deb9u1	DLA-2358-1
openexr	source	buster	2.2.1-4.1+deb10u1	DSA-4755-1
openexr	source	(unstable)	2.5.3-2		959444

Notes

[jessie] - openexr <not-affected> (Vulnerable code not present)
https://bugs.chromium.org/p/project-zero/issues/detail?id=1987
https://github.com/AcademySoftwareFoundation/openexr/commit/3eda5d70aba127bae9bd6bae9956fcf024b64031
https://github.com/AcademySoftwareFoundation/openexr/commit/2ae5f8376b0a6c3e2bb100042f5de79503ba837a
Introduced by https://github.com/AcademySoftwareFoundation/openexr/commit/7f0c9e256f34cac5a31e9d9cce00ccc898f49f3b (v2.2.0)