Cisco has released security advisories to address multiple vulnerabilities affecting Unified Communications Manager and Unified Presence.
These vulnerabilities affect the processing of Session Initiation Protocol (SIP) messages. Exploitation of these vulnerabilities may allow an attacker to cause a denial-of-service condition, which could cause an interruption of voice services.
Cisco Unified Communications Manager users and administrators are encouraged to review Cisco security advisory cisco-sa-20100825-cucm and apply any necessary updates to help mitigate the risks. Cisco Unified Presence users and administrators are encouraged to review Cisco security advisory cisco-sa-20100825-cup and apply any necessary updates to help mitigate the risks.
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