CVE-2003-1109 | Cisco IP Phone/IOS/PIX Firewall Session Initiation Protocol INVITE Message memory corruption (VU#528719 / Nessus ID 48969)
A vulnerability classified as critical was found in Cisco IP Phone, IOS and PIX Firewall. Affected by this vulnerability is an unknown functionality of the component Session Initiation Protocol. The manipulation as part of INVITE Message leads to memory corruption.
This vulnerability is known as CVE-2003-1109. The attack can be launched remotely. There is no exploit available.
It is recommended to apply a patch to fix this issue.