Cisco Email Security Appliance Format String Vulnerability

Cisco Email Security Appliance contains a vulnerability that could allow an authenticated, remote attacker to cause a denial of service condition.

The vulnerability is due to failure to release file descriptors when the requested file action is completed. An attacker could exploit this vulnerability by sending a crafted HTTP request to the affected device. A successful exploit could allow the attacker to cause a DoS condition due to the affected device failing to release file descriptors. When all file descriptors are in use, the device can reload unexpectedly.

Cisco Email Security Appliance 8.5.6-106/9.6.0-042

Checks if a vulnerable version is present on the target host.

No known solution was made available for at least one year since the disclosure of this vulnerability. Likely none will be provided anymore. General solution options are to upgrade to a newer release, disable respective features, remove the product or replace the product by another one.