A vulnerability classified as very critical has been found in FFmpeg 2.1 (Multimedia Processing Software). Affected is the function decode_interframe_v4 of the file libavcodec/hnm4video.c. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability.

The issue has been introduced in 10/29/2013. The weakness was shared 11/22/2013 by Mateusz Jurczyk and Gynvael Coldwind with Google Security Team as avcodec/hnm4video: check offset in decode_interframe_v4() more completely as confirmed git commit (GIT Repository). The advisory is available at git.videolan.org. The vendor cooperated in the coordination of the public release. The exploitability is told to be difficult. 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 structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 04/17/2019).

The vulnerability was handled as a non-public zero-day exploit for at least 24 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 entries 11398, 11397, 11396 and 11395 are related to this item.

Affected

• FFmpeg 2.1
• Libav 0.8.9

Productinfo

Type

• Multimedia Processing Software

Name

• FFmpeg

Version

• 2.1

License

• open-source

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

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