CVE-2014-8543

Severity: high (CVSS 7.5 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2014-11-05 · updated 2026-06-17
Weakness: CWE-20

Description

libavcodec/mmvideo.c in FFmpeg before 2.4.2 does not consider all lines of HHV Intra blocks during validation of image height, which allows remote attackers to cause a denial of service (out-of-bounds access) or possibly have unspecified other impact via crafted MM video data.

Affected products

Canonical Ubuntu Linux: 12.04
FFmpeg: through 2.4.1; 0.3, 0.3.1, 0.3.2, 0.3.3, 0.3.4, 0.4.0 (+98)

References

http://git.videolan.org/?p=ffmpeg.git%3Ba=commit%3Bh=8b0e96e1f21b761ca15dbb470cd619a1ebf86c3e
http://www.ffmpeg.org/security.html
http://www.ubuntu.com/usn/USN-2534-1
https://security.gentoo.org/glsa/201603-06
http://git.videolan.org/?p=ffmpeg.git%3Ba=commit%3Bh=8b0e96e1f21b761ca15dbb470cd619a1ebf86c3e
http://www.ffmpeg.org/security.html
http://www.ubuntu.com/usn/USN-2534-1
https://security.gentoo.org/glsa/201603-06

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