Cisco Firewall Services Module (FWSM) 3.x before 3.1(3.11), when the HTTPS server is enabled, allows remote attackers to cause a denial of service (device reboot) via certain HTTPS traffic.
https://exchange.xforce.ibmcloud.com/vulnerabilities/32513
https://exchange.xforce.ibmcloud.com/vulnerabilities/32497
http://www.vupen.com/english/advisories/2007/0609
http://www.securityfocus.com/bid/22561
http://www.cisco.com/en/US/products/products_security_advisory09186a00807e2481.shtml