Cisco SIP Software vulnerabilities

A vulnerability in Cisco Desk Phone 9800 Series, IP Phone 7800 and 8800 Series, and Video Phone 8875 running SIP Software allows an unauthenticated, remote attacker to cause a DoS condition. It is due to improper memory management when processing HTTP packets, and exploitation involves sending a continuous stream of crafted HTTP packets.

A vulnerability in the web UI of Cisco Desk Phone 9800 Series, IP Phone 7800/8800 Series, and Video Phone 8875 running Cisco SIP Software allows an unauthenticated, remote attacker to conduct XSS attacks against a user of the web UI. The issue exists due to insufficient validation of user-supplied input. Exploitation requires the user to click a crafted link, and the phone must be registered to Cisco Unified Communications Manager with Web Access enabled (disabled by default).

A vulnerability in the web UI of Cisco Desk Phone 9800 Series, Cisco IP Phone 7800 and 8800 Series, and Cisco Video Phone 8875 running Cisco SIP Software could allow an unauthenticated, remote attacker to cause a DoS condition on an affected device. This is due to a buffer overflow when processing HTTP packets. An attacker could exploit this by sending crafted HTTP input, causing the device to reload. To exploit, the phone must be registered to Cisco Unified Communications Manager and have Web Access enabled (disabled by default).