Buffer overflow in FFmpeg - CVE-2014-8547

Vulnerability identifier: #VU110598

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-2014-8547

CWE-ID: CWE-119

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote non-authenticated attacker to read and manipulate data.

libavcodec/gifdec.c in FFmpeg before 2.4.2 does not properly compute image heights, which allows remote attackers to cause a denial of service (out-of-bounds access) or possibly have unspecified other impact via crafted GIF data.

FFmpeg
Gentoo Linux
Ubuntu
libavcodec53 (Ubuntu package)
libavformat53 (Ubuntu package)
media-video/ffmpeg

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
libavcodec53 (Ubuntu package) - update to 4:0.8.17-0ubuntu0.12.04.1
libavformat53 (Ubuntu package) - update to 4:0.8.17-0ubuntu0.12.04.1
media-video/ffmpeg - update to 2.6.3

• http://git.videolan.org/?p=ffmpeg.git;a=commit;h=8f1457864be8fb9653643519dea1c6492f1dde57
• http://www.ffmpeg.org/security.html
• http://www.ubuntu.com/usn/USN-2534-1
• https://security.gentoo.org/glsa/201603-06

• Multiple vulnerabilities in FFmpeg
• Gentoo update for FFmpeg
• Ubuntu update for libav