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TITLE:
GrabIt ".NZB" File Processing Buffer Overflow Vulnerability

SECUNIA ADVISORY ID:
SA34893

VERIFY ADVISORY:
http://secunia.com/advisories/34893/

DESCRIPTION:
A vulnerability has been reported in GrabIt, which can be exploited
by malicious people to compromise a user's system.

The vulnerability is caused due to a boundary error when processing
the doctype declaration within ".NZB" files. This can be exploited to
cause a stack-based buffer overflow when a specially crafted ".NZB"
file containing an overly large string as DTD URI is opened.

Successful exploitation allows execution of arbitrary code.

The vulnerability is reported in version GrabIt 1.7.2 beta 3. Other
versions may also be affected.

SOLUTION:
Fixed in version 1.7.2 beta 4.

PROVIDED AND/OR DISCOVERED BY:
Niels Teusink

ORIGINAL ADVISORY:
GrabIt:
http://www.shemes.com/index.php?p=whatsnew

Niels Teusink:
http://blog.teusink.net/2009/05/grabit-172-beta-3-nzb-file-parsing.html

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