Buffer overflow in Libav and FFmpeg - CVE-2011-3947
Published: August 20, 2012 / Updated: August 11, 2020
Vulnerability identifier: #VU43700
CSH Severity: Medium
CVSS v4: 4.6 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2011-3947
CWE-ID: CWE-119
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.
Buffer overflow in mjpegbdec.c in libavcodec in FFmpeg 0.7.x before 0.7.12 and 0.8.x before 0.8.11, and in Libav 0.5.x before 0.5.9, 0.6.x before 0.6.6, 0.7.x before 0.7.5, and 0.8.x before 0.8.1, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted MJPEG-B file.
Affected software
Libav
FFmpeg
Gentoo Linux
FFmpeg
Gentoo Linux
How to mitigate CVE-2011-3947
Install update from vendor's website.
External References
- http://ffmpeg.org/
- http://git.libav.org/?p=libav.git;a=commit;h=b57d262412204e54a7ef8fa1b23ff4dcede622e5
- http://git.videolan.org/?p=ffmpeg.git;a=commit;h=b57d262412204e54a7ef8fa1b23ff4dcede622e5
- http://libav.org/
- http://secunia.com/advisories/49089
- http://www.debian.org/security/2012/dsa-2471
- http://www.ubuntu.com/usn/USN-1479-1