TITLE:
Skype "callto:" URI Handler Buffer Overflow Vulnerability

SECUNIA ADVISORY ID:
SA13191

VERIFY ADVISORY:
http://secunia.com/advisories/13191/

CRITICAL:
Highly critical

IMPACT:
System access

WHERE:
>From remote

SOFTWARE:
Skype for Windows 1.x
http://secunia.com/product/4250/

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

The vulnerability is caused due to a boundary error within the
handling of command line arguments. This can be exploited to cause a
stack-based buffer overflow by e.g. tricking a user into visiting a
malicious web site, which passes an overly long string (more than
4096 bytes) to the "callto:" URI handler.

Successful exploitation may allow execution of arbitrary code.

The vulnerability affects versions 1.0.*.95 through 1.0.*.98.

SOLUTION:
Update to version 1.0.0.100.
http://www.skype.com/products/skype/windows/

PROVIDED AND/OR DISCOVERED BY:
Reported by vendor.

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