[UNIX] Flac123 Stack Overflow in Comment Parsing

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Flac123 Stack Overflow in Comment Parsing
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SUMMARY

flac123, also known as flac-tools, is vulnerable to a buffer overflow in
vorbis comment parsing. This allows for the execution of arbitrary code.

DETAILS

Vulnerable Systems:
* flac123 version 0.0.9

Immune Systems:
* flac123 version 0.0.10

The function local__vcentry_parse_value() in vorbiscomment.c does not
correctly handle a long value_length, causing it to overflow the buffer
"dest" during memcpy().

ADDITIONAL INFORMATION

The information has been provided by <mailto:david@isecpartners.com>
David Thiel.
The original article can be found at:
<http://www.isecpartners.com/advisories/2007-002-flactools.txt>

http://www.isecpartners.com/advisories/2007-002-flactools.txt

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