CVE-2006-4775

Cisco IOS and CatOS - Denial of Service via VTP Update Revision Value Overflow

Title source: llm
STIX 2.1

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.

References (12)

Core 12
Core References
Various Sources x_refsource_misc
http://www.phenoelit.de/stuff/CiscoVTP.txt
Vendor Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/21896
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/19998
Third Party Advisory, VDB Entry vdb-entry x_refsource_osvdb
http://www.osvdb.org/28776
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://securitytracker.com/id?1016843
Third Party Advisory, VDB Entry mailing-list x_refsource_bugtraq
http://www.securityfocus.com/archive/1/445938/100/0/threaded
Vendor Advisory vdb-entry x_refsource_vupen
http://www.vupen.com/english/advisories/2006/3600
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/28925
US Government Resource third-party-advisory x_refsource_cert-vn
http://www.kb.cert.org/vuls/id/175148
Third Party Advisory, VDB Entry mailing-list x_refsource_bugtraq
http://www.securityfocus.com/archive/1/445896/100/0/threaded
Vendor Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/21902

Scores

EPSS 0.0475
EPSS Percentile 90.9%

Details

CWE
CWE-399
Status published
Products (2)
cisco/catos
cisco/ios 12.1\(19\)
Published Sep 14, 2006
Tracked Since Feb 18, 2026