Input validation error in FFmpeg - CVE-2014-8543
Published: December 3, 2016 / Updated: June 8, 2025
Vulnerability identifier: #VU110600
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2014-8543
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to read and manipulate data.
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 software
FFmpeg
Gentoo Linux
media-video/ffmpeg
Gentoo Linux
media-video/ffmpeg
How to mitigate CVE-2014-8543
Install update from vendor's website.
FFmpeg - addressed in versions 0.4.9 pre1, 0.5.6, 0.6.4, 0.7.13, 0.8.12, 0.9.2, 0.10.5, 0.11.5, 1.0.5, 1.1.14, 1.2.8, 2.0.6, 2.1.6, 2.2.5, 2.3.5, 2.4.1
media-video/ffmpeg - update to 2.6.3
media-video/ffmpeg - update to 2.6.3