CVE-2021-20298

NameCVE-2021-20298
DescriptionA flaw was found in OpenEXR's B44Compressor. This flaw allows an attacker who can submit a crafted file to be processed by OpenEXR, to exhaust all memory accessible to the application. The highest threat from this vulnerability is to system availability.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-3236-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
openexr (PTS)jessie, jessie (lts)1.6.1-8+deb8u3vulnerable
stretch (security), stretch (lts), stretch2.2.0-11+deb9u4vulnerable
buster2.2.1-4.1+deb10u1vulnerable
buster (security)2.2.1-4.1+deb10u2fixed
bullseye (security), bullseye2.5.4-2+deb11u1fixed
bookworm3.1.5-5fixed
sid, trixie3.1.5-5.1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
openexrsourcebuster2.2.1-4.1+deb10u2DLA-3236-1
openexrsource(unstable)2.5.4-1

Notes

[stretch] - openexr <postponed> (Minor issue, OOM, revisit when there's a full fix upstream)
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=25913
https://github.com/AcademySoftwareFoundation/openexr/commit/85fd638ae0d5fa132434f4cbf32590261c1dba97 (master) (partial fix)
https://github.com/AcademySoftwareFoundation/openexr/commit/0c2b46f630a3b5f2f561c2849d047ee39f899179 (2.5.x) (partial fix)
[jessie] - openexr <postponed> (Minor issue, OOM, revisit when there's a full fix upstream)

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