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.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Pix | Cisco | 7.2 (including) | 7.2 (including) |
| Adaptive_security_appliance_software | Cisco | 7.2.2 (including) | 7.2.2 (including) |
References
- http://secunia.com/advisories/25109
- http://www.cisco.com/en/US/products/products_security_response09186a0080833172.html
- http://www.kb.cert.org/vuls/id/530057
- http://www.osvdb.org/35330
- http://www.securityfocus.com/bid/23763
- http://www.securitytracker.com/id?1017999
- http://www.securitytracker.com/id?1018000
- http://www.vupen.com/english/advisories/2007/1635
- https://exchange.xforce.ibmcloud.com/vulnerabilities/34026
- http://secunia.com/advisories/25109
- http://www.cisco.com/en/US/products/products_security_response09186a0080833172.html
- http://www.kb.cert.org/vuls/id/530057
- http://www.osvdb.org/35330
- http://www.securityfocus.com/bid/23763
- http://www.securitytracker.com/id?1017999
- http://www.securitytracker.com/id?1018000
- http://www.vupen.com/english/advisories/2007/1635
- https://exchange.xforce.ibmcloud.com/vulnerabilities/34026