Summaryinfo

A vulnerability, which was classified as critical, has been found in FFmpeg 2.1. Affected by this issue is the function decode_interframe_v4a of the file libavcodec/hnm4video.c. The manipulation leads to memory corruption. No exploit exists. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability was found in FFmpeg 2.1 (Multimedia Processing Software). It has been rated as very critical. This issue affects the function decode_interframe_v4a of the file libavcodec/hnm4video.c. 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 10/29/2013. The weakness was disclosed 02/03/2014 by Mateusz Jurczyk and Gynvael Coldwind with Google Security Team as avcodec/hnm4video: check offset before subtraction in decode_interframe_v4a() as confirmed git commit (GIT Repository). It is possible to read the advisory at git.videolan.org. The public release has been coordinated in cooperation with the project team. The exploitation is known to be difficult. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 04/18/2019).

The vulnerability was handled as a non-public zero-day exploit for at least 97 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.videolan.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 (102883†). The entries VDB-12166, VDB-12165, VDB-12164 and VDB-12163 are pretty similar. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

• FFmpeg 2.1
• Libav 0.8.9

Productinfo

Type

• Multimedia Processing Software

Name

• FFmpeg

Version

• 2.1

License

• open-source

Website

• Product: https://ffmpeg.org/

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

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