Buffer overflow in FFmpeg and Libav - CVE-2011-3940
Published: August 20, 2012 / Updated: August 11, 2020
Vulnerability identifier: #VU43699
CSH Severity: Medium
CVSS v4.0: 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/E:U/U:Green
CVE-ID: CVE-2011-3940
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: ffmpeg.sourceforge.net
Libav
Libav
Affected software:
FFmpeg
Libav
FFmpeg
Libav
Detailed vulnerability description
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."
How to mitigate CVE-2011-3940
Install update from vendor's website.
Sources
- 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