| Name | CVE-2021-20296 |
| Description | A flaw was found in OpenEXR in versions before 3.0.0-beta. A crafted input file supplied by an attacker, that is processed by the Dwa decompression functionality of OpenEXR's IlmImf library, could cause a NULL pointer dereference. 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) |
| References | DLA-2701-1, DLA-3236-1 |
| Debian Bugs | 986796 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| openexr (PTS) | jessie, jessie (lts) | 1.6.1-8+deb8u3 | fixed |
| stretch (security), stretch (lts), stretch | 2.2.0-11+deb9u4 | fixed |
| buster (security), buster, buster (lts) | 2.2.1-4.1+deb10u2 | fixed |
| 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.
Notes
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=24854
https://github.com/AcademySoftwareFoundation/openexr/commit/b0c63c0b96eb9b0d3998f603e12f9f414fb0d44a
[jessie] - openexr <not-affected> (DWA compressor introduced v2.2)