Vulnerability CVE-2011-1931


Published: 2011-07-07   Modified: 2012-02-13

Description:
sp5xdec.c in the Sunplus SP5X JPEG decoder in libavcodec in FFmpeg before 0.6.3 and libav through 0.6.2, as used in VideoLAN VLC media player 1.1.9 and earlier and other products, performs a write operation outside the bounds of an unspecified array, which allows remote attackers to cause a denial of service (memory corruption) or possibly execute arbitrary code via a malformed AMV file.

See advisories in our WLB2 database:
Topic
Author
Date
Med.
NGS00068 Patch Notification: LibAVCodec AMV Out of Array Write
Research@NGSSecu...
09.07.2011

Type:

CWE-119

(Improper Restriction of Operations within the Bounds of a Memory Buffer)

CVSS2 => (AV:N/AC:M/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
6.8/10
6.4/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Videolan -> Vlc media player 
Libav -> Libav 
Ffmpeg -> Ffmpeg 

 References:
http://git.videolan.org/?p=ffmpeg.git;a=commit;h=89f903b3d5ec38c9c5d90fba7e626fa0eda61a32
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=624339
http://www.securityfocus.com/bid/47602
http://www.securityfocus.com/archive/1/517706
http://securityreason.com/securityalert/8299

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