Microsoft Windows Print Spooler Service Buffer Overflow Vulnerability
Secunia Advisory: SA16356
Release Date: 2005-08-09
Last Update: 2005-11-21
Popularity: 22,919 views

Critical:
Moderately critical
Impact: Privilege escalation
System access
Where: From local network
Solution Status: Vendor Patch

OS:Microsoft Windows 2000 Advanced Server
Microsoft Windows 2000 Datacenter Server
Microsoft Windows 2000 Server
Microsoft Windows Server 2003 Datacenter Edition
Microsoft Windows Server 2003 Enterprise Edition
Microsoft Windows Server 2003 Standard Edition
Microsoft Windows Server 2003 Web Edition
Microsoft Windows XP Embedded
Microsoft Windows XP Professional

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CVE reference:CVE-2005-1984


Description:
A vulnerability has been reported in Microsoft Windows, which can be exploited by malicious people to cause a DoS (Denial of Service) or potentially compromise a vulnerable system.

The vulnerability is caused due to an unchecked buffer in spoolsv.exe. This can potentially be exploited to execute arbitrary code by people or users, who can connect to the service.

According to Microsoft, this can only be exploited to cause a DoS on Windows XP SP2 and Windows Server 2003.

Solution:
Apply patches.

Microsoft Windows 2000 (requires SP4):
http://www.microsoft.com/downloads/de...=3DD3B530-7F43-4C18-8298-6E8797431A5D

Microsoft Windows XP (requires SP1 or SP2):
http://www.microsoft.com/downloads/de...=EF402946-1C3B-47E9-9D51-77D890DF8725

Microsoft Windows XP Embedded (with SP2):
http://www.microsoft.com/downloads/de...=9da5dae9-9e2d-45ef-8c9b-d773409b6187

Microsoft Windows XP Embedded (with SP1):
http://www.microsoft.com/downloads/de...=8f1f7ae2-8e47-4055-9f55-aef72d8ea60d

Microsoft Windows Server 2003:
http://www.microsoft.com/downloads/de...=25469675-DF28-4889-8D13-25EFCD498388

Microsoft Windows Server 2003 for Itanium-based systems:
http://www.microsoft.com/downloads/de...=F0AEC064-34A3-4EE4-9F15-BE1E3DD02BC7

Provided and/or discovered by:
The vendor credits Kostya Kortchinsky, CERT Renater.

Changelog:
2005-08-10: Added link to US-CERT vulnerability note.
2005-11-21: Added patch information for Windows XP Embedded.

Original Advisory:
MS05-043 (KB896423):
http://www.microsoft.com/technet/security/Bulletin/MS05-043.mspx

Other References:
US-CERT VU#220821:
http://www.kb.cert.org/vuls/id/220821


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