Input validation error in FFmpeg and Libav - CVE-2011-3952
Published: August 20, 2012 / Updated: August 11, 2020
Vulnerability identifier: #VU43702
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-2011-3952
CWE-ID: CWE-20
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.
The decode_init function in kmvc.c in libavcodec in FFmpeg before 0.10 and in Libav 0.5.x before 0.5.9, 0.6.x before 0.6.6, 0.7.x before 0.7.6, and 0.8.x before 0.8.1 allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via a large palette size in a KMVC encoded file.
How to mitigate CVE-2011-3952
Install update from vendor's website.