Cisco Adaptive Security Appliance Auto-Update Denial of Service Vulnerability

A vulnerability in the auto-update feature of the Cisco Adaptive Security Appliance (ASA) could allow an unauthenticated, remote attacker to cause a reload of the ASA.

The vulnerability is due to insufficient input validation of auto-update data. An attacker could exploit this vulnerability by submitting crafted data to the auto-update process. An exploit could allow the attacker to cause the ASA to reload.

Cisco has confirmed the vulnerability in a security notice; however, software updates are not available.

Cisco indicates through the CVSS score that functional exploit code exists; however, the code is not known to be publicly available.