National Cyber Awareness System

Vulnerability Summary for CVE-2007-2461

Overview

The DHCP relay agent in Cisco Adaptive Security Appliance (ASA) and PIX 7.2 allows remote attackers to cause a denial of service (dropped packets) via a DHCPREQUEST or DHCPINFORM message that causes multiple DHCPACK messages to be sent from DHCP servers to the agent, which consumes the memory allocated for a local buffer. NOTE: this issue only occurs when multiple DHCP servers are used.

Impact

CVSS Severity (version 2.0):

CVSS Version 2 Metrics:

References to Advisories, Solutions, and Tools

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US-CERT Vulnerability Note: VU#530057

Name: VU#530057

Type: Patch Information

Hyperlink:http://www.kb.cert.org/vuls/id/530057

External Source: CISCO

Name: 20070502 DHCP Relay Agent Vulnerability in Cisco PIX and ASA Appliances

Type: Patch Information

Hyperlink:http://www.cisco.com/en/US/products/products_security_response09186a0080833172.html

External Source: VUPEN

Name: ADV-2007-1635

Hyperlink:http://www.vupen.com/english/advisories/2007/1635

External Source: XF

Name: cisco-asa-dhcp-dos(34026)

Hyperlink:http://xforce.iss.net/xforce/xfdb/34026

External Source: SECTRACK

Name: 1018000

Hyperlink:http://www.securitytracker.com/id?1018000

External Source: SECTRACK

Name: 1017999

Hyperlink:http://www.securitytracker.com/id?1017999

External Source: BID

Name: 23763

Hyperlink:http://www.securityfocus.com/bid/23763

External Source: OSVDB

Name: 35330

Hyperlink:http://www.osvdb.org/35330

External Source: SECUNIA

Name: 25109

Hyperlink:http://secunia.com/advisories/25109