Input validation error in FFmpeg - CVE-2012-2795
Published: September 11, 2012 / Updated: August 11, 2020
Vulnerability identifier: #VU43596
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2012-2795
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: ffmpeg.sourceforge.net
Affected software:
FFmpeg
FFmpeg
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
Multiple unspecified vulnerabilities in libavcodec/wmalosslessdec.c in FFmpeg before 0.11 have unknown impact and attack vectors related to (1) size of "mclms arrays," (2) "a get_bits(0) in decode_ac_filter," and (3) "too many bits in decode_channel_residues()."
How to mitigate CVE-2012-2795
Install update from vendor's website.
Sources
- http://ffmpeg.org/security.html
- http://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=2a7063de547b1d8fb1cef523469390fb59fb2c50
- http://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=a0abefb0af64a311b15141062c77dd577ba590a3
- http://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=b3a43515827f3d22a881c33b87384f01c86786fd
- http://secunia.com/advisories/50468
- http://www.openwall.com/lists/oss-security/2012/08/31/3
- http://www.openwall.com/lists/oss-security/2012/09/02/4
- http://www.securityfocus.com/bid/55355