A remote overflow exists in Skype. The application fails to perform proper bounds checking resulting in a buffer overflow. By issuing a specially crafted callto:// URI request containing a non-existent username with 4,096 bytes or more, a remote attacker can cause arbitrary code execution resulting in a loss of integrity.
Classification
Location:
Remote / Network Access
Attack Type:
Input Manipulation
Impact:
Loss of Integrity
Exploit:
Exploit Unknown
Disclosure:
OSVDB Verified
OSVDB:
Web Related
Solution
Upgrade to version 1.0.0.100 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.