Input validation error in FFmpeg - CVE-2012-6615
Published: December 24, 2013 / Updated: October 12, 2021
Vulnerability identifier: #VU42203
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2012-6615
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 remote attackers to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can cause a denial of service (NULL pointer dereference and crash) via a subtitle dialog without text. Per: http://cwe.mitre.org/data/definitions/476.html "CWE-476: NULL Pointer Dereference" AC:M for notation of file in bug report " ffmpeg crashes reproducibly when converting files with some subtitles. i've seen the crash with self-compiled ffmpeg 1.0 as well as the Mac OS X binary (linked to from the hompage) for 1.0.1.
How to mitigate CVE-2012-6615
Install update from vendor's website.