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Insecure Library Loading
Moderately critical

FFmpeg Multiple Vulnerabilities

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Release Date:  2011-08-11    Last Update:  2011-09-22    Views:  2,334

Secunia Advisory SA45532

Where:

From remote

Impact:

System access

Solution Status:

Vendor Patch

Software:

CVE Reference(s):

Description


Some vulnerabilities have been reported in FFmpeg, which can be exploited by malicious people to potentially compromise an application using the library.

1) A signedness error within the "decode_residual_block()" function (libavcodec/cavsdec.c) when processing specially crafted Chinese AVS (CAVS) files can be exploited to cause a memory corruption by tricking a user into opening specially crafted CAVS files.

2) An error related to the handling of memory allocations within the Matroska decoder can be exploited to execute arbitrary code by tricking a user into opening specially crafted Matroska media files.

The vulnerabilities are reported in versions prior to versions 0.7.3 and 0.8.2.


Solution:
Update to version 0.7.3 or 0.8.2.

Provided and/or discovered by:
1) Emmanouel Kellinis via oCERT
2) Jeong Wook (Matt) Oh, Microsoft Malware Protection Center (MMPC)

Original Advisory:
oCERT #2011-002:
http://www.ocert.org/advisories/ocert-2011-002.html

Microsoft:
http://technet.microsoft.com/en-us/security/msvr/msvr11-011

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: FFmpeg Multiple Vulnerabilities

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