Article ID: 298340 - View products that this article applies to.
This article was previously published under Q298340
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In Internet Information Services (IIS) 5.0, a denial of service vulnerability exists that an attacker could exploit to temporarily disrupt Web services on an IIS 5.0 server.
This vulnerability occurs because of the way that WebDAV handles a particular type of very long, invalid request. The net effect is to cause an access violation that results in the failure of the IIS 5.0 process.
To resolve this problem, obtain the latest service pack for Windows 2000. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
260910The English version of this fix should have the following file attributes or later:
(http://support.microsoft.com/kb/260910/EN-US/ )How to Obtain the Latest Windows 2000 Service Pack
Date Time Version Size File name ------------------------------------------------------ 12-May-2001 1815 5.0.2195.3608 246,032 Httpext.dll
Microsoft has confirmed that this problem may cause a degree of security vulnerability in Internet Information Services 5.0. This problem was first corrected in Windows 2000 Service Pack 3.
This patch also contains fixes for the problems described in the following Microsoft Knowledge Base article:
297860For more information on this vulnerability, see the following Microsoft Web site:
(http://support.microsoft.com/kb/297860/EN-US/ )IIS 5.0 Security and Post-Windows NT 4.0 SP5 IIS 4.0 Patch Rollup
http://www.microsoft.com/technet/security/bulletin/ms01-044.mspxFor additional information about how to obtain a hotfix for Windows 2000 Datacenter Server, click the article number below to view the article in the Microsoft Knowledge Base:
265173For additional information about how to install multiple hotfixes with only one reboot, click the article number below to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/265173/EN-US/ )The Datacenter Program and Windows 2000 Datacenter Server Product
(http://support.microsoft.com/kb/296861/EN-US/ )Use QChain.exe to Install Multiple Hotfixes with One Reboot
Article ID: 298340 - Last Review: October 23, 2013 - Revision: 2.2