CVE-2021-3477

NameCVE-2021-3477
DescriptionThere's a flaw in OpenEXR's deep tile sample size calculations in versions before 3.0.0-beta. An attacker who is able to submit a crafted file to be processed by OpenEXR could trigger an integer overflow, subsequently leading to an out-of-bounds read. The greatest risk of this flaw is to application availability.
SourceCVE (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 severitymedium
Debian Bugs986796

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
openexr (PTS)stretch2.2.0-11vulnerable
stretch (security)2.2.0-11+deb9u2vulnerable
buster, buster (security)2.2.1-4.1+deb10u1vulnerable
bullseye, sid2.5.4-1vulnerable

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
openexrsource(unstable)(unfixed)986796

Notes

[buster] - openexr <no-dsa> (Minor issue)
[stretch] - openexr <no-dsa> (Minor issue)
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26956
https://bugzilla.redhat.com/show_bug.cgi?id=1939159
https://github.com/AcademySoftwareFoundation/openexr/commit/467be80b75642efbbe6bdace558079f68c16acb1

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