FFmpeg 2.0 Input Packet Size libavcodec/wnv1.c decode_frame memory corruption

Summaryinfo

A vulnerability categorized as critical has been discovered in FFmpeg 2.0. Impacted is the function decode_frame of the file libavcodec/wnv1.c of the component Input Packet Size Handler. Such manipulation leads to memory corruption. There is not any exploit available. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability was found in FFmpeg 2.0 (Multimedia Processing Software). It has been rated as very critical. Affected by this issue is the function decode_frame of the file libavcodec/wnv1.c of the component Input Packet Size Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability.

The issue has been introduced in 07/11/2013. The weakness was released 09/22/2013 by Mateusz Jurczyk and Gynvael Coldwind with Google Security Team as wnv1: Make sure the input packet is large enough as confirmed git commit (GIT Repository). The advisory is available at git.libav.org. The public release was coordinated with the vendor. The exploitation is known to be difficult. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 04/16/2019).

The vulnerability was handled as a non-public zero-day exploit for at least 73 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.

The vulnerability is also documented in the vulnerability database at OSVDB (97644†). Entries connected to this vulnerability are available at VDB-10468, VDB-10467, VDB-10465 and VDB-10464. If you want to get best quality of vulnerability data, you may have to visit VulDB.

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

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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