From Secunia:
Description:
Tom Ferris has reported a vulnerability in Skype for Mac, which potentially can be exploited by malicious people to compromise a user’s system.
The vulnerability is caused due to a format string error within the handling of URI arguments and can be exploited via a specially crafted Skype URL containing format specifiers.
Successful exploitation may allow execution of arbitrary code.
The vulnerability affects versions 1.5.*.79 and prior.
Solution:
Update to version 1.5.0.80.
http://www.skype.com/download/
[tags]Vulnerability, Skype, Mac, Apple[/tags]