CVE-2006-4775 Information

Description

The VLAN Trunking Protocol (VTP) feature in Cisco IOS 12.1(19) and CatOS allows remote attackers to cause a denial of service by sending a VTP update with a revision value of 0x7FFFFFFF which is incremented to 0x80000000 and is interpreted as a negative number in a signed context.

Reference

http://secunia.com/advisories/21896 http://secunia.com/advisories/21902 http://securitytracker.com/id?1016843 http://www.cisco.com/warp/public/707/cisco-sr-20060913-vtp.shtml http://www.kb.cert.org/vuls/id/175148 http://www.osvdb.org/28776 http://www.phenoelit.de/stuff/CiscoVTP.txt http://www.securityfocus.com/archive/1/445896/100/0/threaded http://www.securityfocus.com/archive/1/445938/100/0/threaded http://www.securityfocus.com/bid/19998 http://www.vupen.com/english/advisories/2006/3600 https://exchange.xforce.ibmcloud.com/vulnerabilities/28925