Cisco has released security updates to address vulnerabilities in Cisco AsyncOS Software for Cisco Email Security Appliance. A remote attacker could exploit these vulnerabilities to cause a denial-of-service condition.
Therefore, BtCIRT recommends users and administrators to review the the following Cisco Security Advisories and apply the necessary updates:
- Cisco Email Security Appliance Memory Corruption Denial of Service Vulnerability [cisco-sa-20190109-esa-dos]
- Cisco Email Security Appliance URL Filtering Denial of Service Vulnerability [cisco-sa-20190109-esa-url-dos]