Summaryinfo

A vulnerability labeled as critical has been found in FFmpeg 2.0. This impacts the function g2m_load_cursor of the file libavcodec/g2meet.c. The manipulation results in memory corruption. No exploit exists. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability, which was classified as very critical, was found in FFmpeg 2.0 (Multimedia Processing Software). Affected is the function g2m_load_cursor of the file libavcodec/g2meet.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 07/11/2013. The weakness was disclosed 09/12/2013 by Mateusz Jurczyk and Gynvael Coldwind with Google Security Team as g2meet: Allocate cursor buffers large enough to fit the aligned width as confirmed git commit (GIT Repository). The advisory is shared for download at git.libav.org. The public release has been coordinated in cooperation with the vendor. The exploitability is told to be difficult. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 04/15/2019).

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.

The vulnerability is also documented in the databases at OSVDB (97316†) and Secunia (SA54857†). The entries VDB-10267, VDB-10268, VDB-10269 and VDB-10271 are pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

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

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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