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Cisco Global Site Selector DNS Server Remote Denial Of Service Vulnerability

Cisco Global Site Selector is prone to a remote denial-of-service vulnerability when handling specific DNS requests.

A remote attacker may exploit this issue to crash the vulnerable DNS server, resulting in a denial-of-service condition.

This issue is documented in Cisco Bug ID CSCsj70093.

The following are vulnerable to this issue when running system software prior to version 3.0(1):

Cisco GSS 4480 Global Site Selector
Cisco GSS 4490 Global Site Selector
Cisco GSS 4491 Global Site Selector
Cisco GSS 4492R Global Site Selector