CVE-2021-20303

NameCVE-2021-20303
DescriptionA flaw found in function dataWindowForTile() of IlmImf/ImfTiledMisc.cpp. An attacker who is able to submit a crafted file to be processed by OpenEXR could trigger an integer overflow, leading to an out-of-bounds write on the heap. The greatest impact of this flaw is to application availability, with some potential impact to data integrity as well.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)
ReferencesDLA-2732-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
openexr (PTS)buster, buster (security)2.2.1-4.1+deb10u1vulnerable
bullseye2.5.4-2fixed
bookworm, sid3.1.5-4fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
openexrsourcestretch2.2.0-11+deb9u4DLA-2732-1
openexrsource(unstable)2.5.4-1

Notes

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=25505
https://github.com/AcademySoftwareFoundation/openexr/pull/831

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