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:
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
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Subject: FFmpeg Multiple Vulnerabilities
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