Privilege escalation

Cisco ONS 15454 controller cards with software 9.6 and earlier allow remote attackers to cause a denial of service card reset via a TCP FIN attack that triggers file-descriptor exhaustion and a failure to open a CAL pipe, aka Bug ID CSCug97348...

Cisco ONS 15454 Controller Card Denial of Service Vulnerability

A vulnerability in the code of the Cisco ONS 15454 Controller Cards could allow an unauthenticated, remote attacker to cause the control card to reset. The vulnerability is due to improper instructions to reload the controller card. A CAL pipe fails to open when the file descriptors are exhausted...