FFmpeg 2.0 Video File libavcodec/shorten.c decode_wave_header privileges management

Summaryinfo

A vulnerability has been found in FFmpeg 2.0 and classified as problematic. Impacted is the function decode_wave_header of the file libavcodec/shorten.c of the component Video File Handler. This manipulation causes privileges management. Furthermore, there is an exploit available. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability classified as problematic was found in FFmpeg 2.0 (Multimedia Processing Software). Affected by this vulnerability is the function decode_wave_header of the file libavcodec/shorten.c of the component Video File Handler. The manipulation with an unknown input leads to a privileges management vulnerability. The CWE definition for the vulnerability is CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. As an impact it is known to affect confidentiality, and integrity.

The issue has been introduced in 07/11/2013. The weakness was shared 09/12/2013 by Mateusz Jurczyk and Gynvael Coldwind with Google Security Team as shorten: Use a checked bytestream reader for the wave header as confirmed git commit (GIT Repository). It is possible to read the advisory at git.libav.org. The vendor cooperated in the coordination of the public release. The exploitation appears to be difficult. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details and also a private exploit are known. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

A private exploit has been developed by Mateusz "j00ru" Jurczyk/Gynvael Coldwind. The vulnerability was handled as a non-public zero-day exploit for at least 63 days. During that time the estimated underground price was around $0-$5k.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.libav.org. A possible mitigation has been published immediately after the disclosure of the vulnerability. Currently, there are no known workarounds or upgrades to correct this issue. However, a patch has been committed to the source code repository (e.g. GIT, CVS, SVN) that addresses this vulnerability. Until it is incorporated into the next release of the software, manually patching an existing installation is the only known available solution. Check the vendor links in the references section for more information.

The vulnerability is also documented in the vulnerability database at OSVDB (97323†). Additional details are provided at git.libav.org. The entries VDB-10278, VDB-10277, VDB-10276 and VDB-10275 are related to this item. Be aware that VulDB is the high quality source for vulnerability data.

Affected

• FFmpeg 2.0
• Libav 9.9

Productinfo

Type

• Multimedia Processing Software

Name

• FFmpeg

Version

• 2.0

License

• open-source

Website

• Product: https://ffmpeg.org/

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

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Entryinfo

Be aware that VulDB is the high quality source for vulnerability data.

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