CVE:CVE-2005-4794
CNNVD:CNNVD-200512-642
Cisco IP Phones 7902/7905/7912、ATA 186/188、Unity Express、ACNS和Subscriber Edge Services Manager (SESM) 使得远程攻击者可以通过一个压缩DNS包，且包的标签长度字节含有不正确偏移量，从而发起拒绝服务攻击(崩溃或不稳定)。
solution:Upgrade cisco application_and_content_networking_software to a higher version than *; Upgrade cisco ata to a higher version than 186,188,and avoid the version 186,188; Upgrade cisco subscriber_edge_services_manager to a higher version than *; Upgrade cisco ip_phone_7902 to a higher version than *; Upgrade cisco ip_phone_7905 to a higher version than *; Upgrade cisco ip_phone_7912 to a higher version than *; Upgrade cisco unity_express to a higher version than *