National Cyber Awareness System
Vulnerability Summary for CVE-2009-1926
Original release date:09/08/2009
Last revised:12/21/2011
Source:
US-CERT/NIST
Overview
Microsoft Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP2, Vista Gold, SP1, and SP2, and Server 2008 Gold and SP2 allow remote attackers to cause a denial of service (TCP outage) via a series of TCP sessions that have pending data and a (1) small or (2) zero receive window size, and remain in the FIN-WAIT-1 or FIN-WAIT-2 state indefinitely, aka "TCP/IP Orphaned Connections Vulnerability."
Impact
CVSS Severity (version 2.0):
Impact Subscore:
6.9
Exploitability Subscore:
10.0
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type:Allows disruption of serviceUnknown
References to Advisories, Solutions, and Tools
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US-CERT Technical Alert: TA09-251A
Name: TA09-251A
External Source: MS
Name: MS09-048
Type: Advisory; Patch Information
External Source: BID
Name: 36269
External Source: BUGTRAQ
Name: 20090909 TCP/IP Orphaned Connections Vulnerability
External Source: MISC
Name: http://www.recurity-labs.com/content/pub/Microsoft_Windows_CVE-2009-1926
External Source: OVAL
Name: oval:org.mitre.oval:def:5965
External Source: OSVDB
Name: 57797
References to Check Content
Identifier:oval:org.mitre.oval:def:5965
Check System:http://oval.mitre.org/XMLSchema/oval-definitions-5