| Name | CVE-2021-20298 |
| Description | A 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. |
| Source | CVE (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) |
| References | DLA-3236-1 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| openexr (PTS) | buster | 2.2.1-4.1+deb10u1 | vulnerable |
| buster (security) | 2.2.1-4.1+deb10u2 | fixed |
| bullseye (security), bullseye | 2.5.4-2+deb11u1 | fixed |
| bookworm, sid | 3.1.5-4 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| openexr | source | buster | 2.2.1-4.1+deb10u2 | | DLA-3236-1 | |
| openexr | source | (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)