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MS01-031: Logon Command That Contains a Particular Malformation Causes an Access Violation in the Telnet Service
Article ID: 299553 - View products that this article applies to.
This article was previously published under Q299553
A denial-of-service vulnerability exists in the Windows 2000 Telnet service that is caused by the manner in which Telnet handles a logon command that contains a particular deformity. If an attacker entered such a command, it would cause the Telnet service to stop working. The administrator could restore normal service by restarting the Telnet session.
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 ----------------------------------------------------- 05/24/2001 04:14p 5.0.33667.1 186,128 Tlntsvr.exe
Microsoft has confirmed that this problem may cause a degree of security vulnerability in Microsoft Windows 2000. This problem was first corrected in Windows 2000 Service Pack 3.
For 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
296861For additional information about what is fixed by this patch, click the article number below to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/296861/EN-US/ )Use QChain.exe to Install Multiple Hotfixes with One Reboot
300855For more information about this vulnerability, see the following Microsoft Web site:
(http://support.microsoft.com/kb/300855/EN-US/ )Windows 2000 Telnet Security Rollup
Article ID: 299553 - Last Review: February 19, 2007 - Revision: 4.3