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Overview

Vulnerability Score 10.0 10.0
CVE Id CVE-2005-0065
Last Modified 05 Sep 2008 04:45:12
Published 02 May 2005 12:00:00
Confidentiality Impact COMPLETE COMPLETE
Integrity Impact COMPLETE COMPLETE
Availability Impact COMPLETE COMPLETE
Access Vector NETWORK
Access Complexity LOW
Authentication NONE

CVE-2005-0065

Summary

The original design of TCP does not check that the TCP sequence number in an ICMP error message is within the range of sequence numbers for data that has been sent but not acknowledged (aka "TCP sequence number checking"), 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.

Vulnerable Systems

Application

  • Tcp


References

MISC - http://www.gont.com.ar/drafts/icmp-attacks-against-tcp.html

BID - 13124


Last Updated: 27 May 2016 10:39:39