Vulnerability Description
The original design of ICMP does not require authentication for host-generated ICMP error messages, which makes it easier for attackers to forge ICMP error messages for specific TCP connections and cause a denial of service, as demonstrated using (1) blind connection-reset attacks with forged "Destination Unreachable" messages, (2) blind throughput-reduction attacks with forged "Source Quench" messages, or (3) blind throughput-reduction attacks with forged ICMP messages that cause the Path MTU to be reduced. NOTE: CVE-2004-0790, CVE-2004-0791, and CVE-2004-1060 have been SPLIT based on different attacks; CVE-2005-0065, CVE-2005-0066, CVE-2005-0067, and CVE-2005-0068 are related identifiers that are SPLIT based on the underlying vulnerability. While CVE normally SPLITs based on vulnerability, the attack-based identifiers exist due to the variety and number of affected implementations and solutions that address the attacks instead of the underlying vulnerabilities.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Tcp | Tcp | All versions |
References
- http://www.gont.com.ar/drafts/icmp-attacks-against-tcp.htmlVendor Advisory
- http://www.securityfocus.com/bid/13124
- http://www.gont.com.ar/drafts/icmp-attacks-against-tcp.htmlVendor Advisory
- http://www.securityfocus.com/bid/13124
FAQ
What is CVE-2005-0068?
CVE-2005-0068 is a vulnerability with a CVSS score of 5.0 (MEDIUM). The original design of ICMP does not require authentication for host-generated ICMP error messages, which makes it easier for attackers to forge ICMP error messages for specific TCP connections and ca...
How severe is CVE-2005-0068?
CVE-2005-0068 has been rated MEDIUM with a CVSS base score of 5.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2005-0068?
Check the references section above for vendor advisories and patch information. Affected products include: Tcp Tcp.