National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2012-6615 Detail

Current Description

The ff_ass_split_override_codes function in libavcodec/ass_split.c in FFmpeg before 1.0.2 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a subtitle dialog without text.

Source:  MITRE
View Analysis Description

Evaluator Description

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. download the sample file: ?https://dl.dropbox.com/u/7221986/ffmpeg-bug.mkv"

Impact

CVSS v2.0 Severity and Metrics:

Base Score: 4.3 MEDIUM
Vector: (AV:N/AC:M/Au:N/C:N/I:N/A:P) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 8.6


Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (AU): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Partial
Additional Information:
Victim must voluntarily interact with attack mechanism
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=20c121c00747d6c3b0b0f98deeff021171b2ed74 Exploit Patch
http://www.ffmpeg.org/security.html
https://trac.ffmpeg.org/ticket/2048

Technical Details

Vulnerability Type (View All)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:ffmpeg:ffmpeg:1.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (including)
1.0.1


Change History

1 change record found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2012-6615
NVD Published Date:
12/24/2013
NVD Last Modified:
12/26/2013