Summaryinfo

A vulnerability marked as critical has been reported in FFmpeg 2.1. This affects the function rotate_luts of the file libavcodec/vc1.c. This manipulation causes memory corruption. There is no available exploit. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability has been found in FFmpeg 2.1 (Multimedia Processing Software) and classified as very critical. Affected by this vulnerability is the function rotate_luts of the file libavcodec/vc1.c. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability.

The issue has been introduced in 10/29/2013. The weakness was presented 02/01/2014 by Mateusz Jurczyk and Gynvael Coldwind with Google Security Team as avcodec/vc1: Check bfraction_lut_index as confirmed git commit (GIT Repository). It is possible to read the advisory at git.videolan.org. The public release was coordinated in cooperation with the project team. The exploitation appears to be difficult. The attack can be launched remotely. The exploitation doesn't need any form of authentication. 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 95 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 (102888†). See VDB-12167, VDB-12166, VDB-12165 and VDB-12164 for similar entries. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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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