Bug#979999: ffmpeg: CVE-2020-35965

[Salvatore Bonaccorso <carnil@debian.org>]

Source: ffmpeg
Version: 7:4.3.1-5
Severity: important
Tags: security upstream
X-Debbugs-Cc: carnil@debian.org, Debian Security Team <team@security.debian.org>

Hi,

The following vulnerability was published for ffmpeg.

CVE-2020-35965[0]:
| decode_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.


If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2020-35965
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-35965
[1] https://github.com/FFmpeg/FFmpeg/commit/3e5959b3457f7f1856d997261e6ac672bba49e8b
[2] https://github.com/FFmpeg/FFmpeg/commit/b0a8b40294ea212c1938348ff112ef1b9bf16bb3
[3] https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26532

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore