Summaryinfo

A vulnerability, which was classified as problematic, was found in FFmpeg 1.0/1.0.1. The impacted element is the function prepare_sdp_description of the file ffserver.c. The manipulation results in denial of service. This vulnerability is identified as CVE-2012-6617. There is not any exploit available. It is best practice to apply a patch to resolve this issue.

Detailsinfo

A vulnerability was found in FFmpeg 1.0/1.0.1 (Multimedia Processing Software). It has been classified as problematic. Affected is the function prepare_sdp_description of the file ffserver.c. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. CVE summarizes:

The prepare_sdp_description function in ffserver.c in FFmpeg before 1.0.2 allows remote attackers to cause a denial of service (crash) via vectors related to the rtp format.

The issue has been introduced in 09/28/2012. The weakness was released 12/24/2013 as confirmed git commit (GIT Repository). The advisory is available at git.videolan.org. This vulnerability is traded as CVE-2012-6617 since 12/24/2013. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 452 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 254323 (Linux Distros Unpatched Vulnerability : CVE-2012-6617), which helps to determine the existence of the flaw in a target environment.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.videolan.org.

The vulnerability is also documented in the databases at Tenable (254323), OSVDB (93232†) and Secunia (SA51964†). Entries connected to this vulnerability are available at VDB-7503, VDB-8655, VDB-8656 and VDB-8658. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

• Multimedia Processing Software

Name

• FFmpeg

Version

• 1.0
• 1.0.1

License

• open-source

Website

• Product: https://ffmpeg.org/

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