CVE-2020-35965

NameCVE-2020-35965
Descriptiondecode_frame in libavcodec/exr.c in FFmpeg 4.3.1 has an out-of-bounds write because of errors in calculations of when to perform memset zero operations.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-2537-1, DSA-4990-1
Debian Bugs979999

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
ffmpeg (PTS)stretch (security)7:3.2.18-0+deb9u1fixed
stretch (lts), stretch7:3.2.19-0+deb9u4fixed
buster7:4.1.9-0+deb10u1fixed
buster (security)7:4.1.11-0+deb10u1fixed
bullseye7:4.3.6-0+deb11u1fixed
bullseye (security)7:4.3.7-0+deb11u1fixed
bookworm (security), bookworm7:5.1.5-0+deb12u1fixed
trixie7:6.1.1-4fixed
sid7:6.1.1-5fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
ffmpegsourcestretch7:3.2.15-0+deb9u2DLA-2537-1
ffmpegsourcebuster7:4.1.8-0+deb10u1DSA-4990-1
ffmpegsource(unstable)7:4.3.1-6979999

Notes

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26532
https://github.com/FFmpeg/FFmpeg/commit/3e5959b3457f7f1856d997261e6ac672bba49e8b
https://github.com/FFmpeg/FFmpeg/commit/b0a8b40294ea212c1938348ff112ef1b9bf16bb3

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