Stop 0A in Tcpip.sys When Receiving Out Of Band (OOB) Data

RESOLUTION

Microsoft has updated Tcpip.sys to correct the problem. Instructions for installing it are available from Microsoft support channels, or directly from the Internet locations below.

NOTE: This hotfix was originally posted on May 12, 1997. A subsequent fix was completed on January 9, 1998, to address another nearly identical attack and this hotfix has replaced the original one. The original hotfix is included in Windows NT 4.0 Service Pack 3. The most recent hotfix is not; however, it is available from the following Internet locations:

Windows NT 4.0 SP2

NOTE: Service pack 2 must be applied to Windows NT 4.0 prior to applying this fix.

This hotfix has been posted to the following Internet location:

Windows NT 4.0 SP3

NOTE: Service pack 3 must be applied to Windows NT 4.0 prior to applying this fix.

Oob-fix and Icmp-fix have been superseded by Teardrop2-fix. For your convenience, the English version of this post-SP3 hotfix has been posted to the following Internet location. However, Microsoft recommends that you install Windows NT 4.0 Service Pack 4 to correct this problem.

This fix should have the following time stamp:

   01/09/98  08:16a               143,664 Tcpip.sys   (Intel)
   01/09/98  08:13a               263,536 Tcpip.sys   (Alpha)
				

For your convenience, the English version of this post-SP3 hotfix has been posted to the following Internet location. However, Microsoft recommends that you install Windows NT 4.0 Service Pack 4 to correct this problem.


WARNING: If you install the original (archived) version of this hotfix AFTER you apply the later version, your system may become unusable. Microsoft does not recommend you install the original hotfix after applying the later version.

To resolve this problem, obtain the latest service pack for Windows NT 4.0 or Windows NT Server 4.0, Terminal Server Edition. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

Windows NT 3.51

NOTE: Service pack 5 must be applied to Windows NT 3.51 prior to applying this fix.

This hotfix has been posted to the following Internet location:

This fix should have the following time stamp:

   01/14/98  12:04p               123,824 Tcpip.sys   (Intel)
   01/14/98  12:00p               216,848 Tcpip.sys   (Alpha)