Buffer overflow in Libav and FFmpeg - CVE-2011-3940
Published: August 20, 2012 / Updated: August 11, 2020
Vulnerability identifier: #VU43699
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-2011-3940
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.
nsvdec.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 (out-of-bounds read and write) via a crafted NSV file that triggers "use of uninitialized streams."
Affected software
Libav
FFmpeg
Gentoo Linux
FFmpeg
Gentoo Linux
How to mitigate CVE-2011-3940
Install update from vendor's website.
External References
- http://ffmpeg.org/
- http://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=5c011706bc752d34bc6ada31d7df2ca0c9af7c6b
- http://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=8fd8a48263ff1437f9d02d7e78dc63efb9b5ed3a
- http://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=c898431ca5ef2a997fe9388b650f658fb60783e5
- http://libav.org/
- http://secunia.com/advisories/49089
- http://www.debian.org/security/2012/dsa-2471
- http://www.ubuntu.com/usn/USN-1479-1