CVE-2015-6823

Severity: high (CVSS 7.5 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2015-09-06 · updated 2026-06-17
Weakness: CWE-17

Description

The allocate_buffers function in libavcodec/alac.c in FFmpeg before 2.7.2 does not initialize certain context data, which allows remote attackers to cause a denial of service (segmentation violation) or possibly have unspecified other impact via crafted Apple Lossless Audio Codec (ALAC) data.

Affected products

FFmpeg: through 2.7.1

References

http://ffmpeg.org/security.html
http://git.videolan.org/?p=ffmpeg.git%3Ba=commit%3Bh=f7068bf277a37479aecde2832208d820682b35e6
http://www.securitytracker.com/id/1033483
https://lists.debian.org/debian-lts-announce/2018/12/msg00010.html
http://ffmpeg.org/security.html
http://git.videolan.org/?p=ffmpeg.git%3Ba=commit%3Bh=f7068bf277a37479aecde2832208d820682b35e6
http://www.securitytracker.com/id/1033483
https://lists.debian.org/debian-lts-announce/2018/12/msg00010.html

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