Input validation error in FFmpeg - CVE-2009-4632
Published: October 26, 2011 / Updated: June 8, 2025
Vulnerability identifier: #VU110617
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2009-4632
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to read memory contents or crash the application.
oggparsevorbis.c in FFmpeg 0.5 does not properly perform certain pointer arithmetic, which might allow remote attackers to obtain sensitive memory contents and cause a denial of service via a crafted file that triggers an out-of-bounds read.
Affected software
FFmpeg
Ubuntu
libavcodec1d (Ubuntu package)
libavformat1d (Ubuntu package)
libavformat52 (Ubuntu package)
libavcodec51 (Ubuntu package)
libavcodec52 (Ubuntu package)
Ubuntu
libavcodec1d (Ubuntu package)
libavformat1d (Ubuntu package)
libavformat52 (Ubuntu package)
libavcodec51 (Ubuntu package)
libavcodec52 (Ubuntu package)
How to mitigate CVE-2009-4632
Install update from vendor's website.
libavcodec1d (Ubuntu package) - update to 3:0.cvs20070307-5ubuntu7.4
libavformat1d (Ubuntu package) - update to 3:0.cvs20070307-5ubuntu7.4
libavformat52 (Ubuntu package) - addressed in versions 3:0.svn20080206-12ubuntu3.2, 3:0.svn20090303-1ubuntu6.1, 4:0.5+svn20090706-2ubuntu2.1
libavcodec51 (Ubuntu package) - update to 3:0.svn20080206-12ubuntu3.2
libavcodec52 (Ubuntu package) - addressed in versions 3:0.svn20090303-1ubuntu6.1, 4:0.5+svn20090706-2ubuntu2.1
libavformat1d (Ubuntu package) - update to 3:0.cvs20070307-5ubuntu7.4
libavformat52 (Ubuntu package) - addressed in versions 3:0.svn20080206-12ubuntu3.2, 3:0.svn20090303-1ubuntu6.1, 4:0.5+svn20090706-2ubuntu2.1
libavcodec51 (Ubuntu package) - update to 3:0.svn20080206-12ubuntu3.2
libavcodec52 (Ubuntu package) - addressed in versions 3:0.svn20090303-1ubuntu6.1, 4:0.5+svn20090706-2ubuntu2.1
External References
- http://scarybeastsecurity.blogspot.com/2009/09/patching-ffmpeg-into-shape.html
- http://secunia.com/advisories/36805
- http://secunia.com/advisories/38643
- http://secunia.com/advisories/39482
- http://www.debian.org/security/2010/dsa-2000
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:060
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:061
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:088
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:112
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:114
- http://www.securityfocus.com/bid/36465
- http://www.ubuntu.com/usn/USN-931-1
- http://www.vupen.com/english/advisories/2010/0935
- http://www.vupen.com/english/advisories/2011/1241
- https://roundup.ffmpeg.org/roundup/ffmpeg/issue1240