A vulnerability in the SSH service of the Cisco StarOS operating system could allow an unauthenticated remote attacker to cause an affected device to stop processing traffic resulting in a denial of service (DoS) condition. The vulnerability is due to a logic error that may occur under specific traffic conditions. An attacker could exploit this vulnerability by sending a series of crafted packets to an affected device. A successful exploit could allow the attacker to prevent the targeted service from receiving any traffic which would lead to a DoS condition on the affected device.