xfocus has reported some vulnerabilities in MPlayer, which can be exploited by malicious people to cause a DoS (Denial of Service) and potentially to compromise a user's system.
The vulnerabilities are caused due to integer overflow errors in "libmpdemux/asfheader.c" within the handling of an ASF file, and in "libmpdemux/aviheader.c" when parsing the "indx" chunk in an AVI file. This can be exploited to cause heap-based buffer overflows via a malicious ASF file, or via a AVI file with specially-crafted "wLongsPerEntry" and "nEntriesInUse" values in the "indx" chunk.
The vulnerability affects version 1.0pre7try2. Other version may also be affected.
Solution: Do not open media files from untrusted sources.
Provided and/or discovered by: xfocus
Original Advisory: http://lists.grok.org.uk/pipermail/full-disclosure/2006-March/044615.html
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Subject: MPlayer AVI "indx" Chunk and ASF Handling Vulnerabilities
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