Lsass.exe crashes soon after you log on to a computer that is running Windows XP Service Pack 2 (SP2) by using a smart card (895325)
The information in this article applies to:
- Microsoft Windows XP Service Pack 2, when used with:
- Microsoft Windows XP Professional
- Microsoft Windows XP Home Edition
The example companies, organizations, products, domain names, e-mail addresses, logos, people, places, and events depicted herein are fictitious. No association with any real company, organization, product, domain name, e-mail address, logo, person, places, or events is intended or should be inferred. SYMPTOMSWhen you use smart card authentication to log on to a computer that is running Microsoft Windows XP Service Pack 2 (SP2), the logon process is successful. However, after several moments, the Lsass.exe process crashes.
You do not experience this problem on a computer that is running Windows XP Service Pack 1 (SP1).CAUSEThis problem occurs because of heap corruption that may occur in the Lsass.exe process when you log on by using a smart card. This problem occurs if the subject field of the certificate on the smart card is in a particular order. In this scenario, if the domain component of the subject field is not in the last few attributes, Lsass.exe experiences heap corruption. Then, the process crashes. The following example subject fields illustrate this problem. Example 1:DC = WIDGETS
DC = MSN
CN = dalexander
CN = Users
In this example, the domain component part of the subject field is not in the last several attributes of the subject field. In this example, Lsass.exe experiences heap corruption. Example 2:CN = David Alexander
CN = Users
DC = corp
DC = tailspin
DC = toys
DC = com In this example, the domain component part of the subject field is in the last several attributes of the subject field. In this example, Lsass.exe does not experience heap corruption. RESOLUTIONHotfix informationA supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Windows XP service pack that contains this hotfix. To resolve this problem immediately, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site: Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question. PrerequisitesNo prerequisites are required to apply this hotfix. Restart requirementYou must restart the computer after you apply this hotfix. Hotfix replacement information This hotfix does not replace any other hotfixes. File information
The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel. |
| Kerberos.dll | 5.1.2600.2626 | 294,912 | 08-Mar-2005 | 08:40 | x86 |
STATUSMicrosoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
| Modification Type: | Minor | Last Reviewed: | 7/24/2006 |
|---|
| Keywords: | kbWinXPpreSP3fix kbfix kbbug kbQFE kbhotfixserver kbpubtypekc KB895325 kbAudITPRO |
|---|
|