Alert: Microsoft Security Bulletin MS05-018 - Vulnerabilities in Windows Kernel Could Allow Elevation of Privilege and Denial of Service (890859)

Microsoft Security Bulletin MS05-018:
Vulnerabilities in Windows Kernel Could Allow Elevation of Privilege and Denial of Service (890859)

Bulletin URL:
<http://www.microsoft.com/technet/security/Bulletin/MS05-018.mspx>

Version Number: 1.0
Issued Date: Tuesday, April 12, 2005
Impact of Vulnerability: Elevation of Privilege
Maximum Severity Rating: Important
Patch(es) Replaced: This bulletin replaces several prior security updates. See the frequently asked questions (FAQ) section of this bulletin for the complete list.
Caveats: None

Tested Software:
Affected Software:
------------------
* Microsoft Windows 2000 Service Pack 3 and Microsoft Windows 2000 Service Pack 4
<http://tinyurl.com/6p7n2>
* Microsoft Windows XP Service Pack 1 and Microsoft Windows XP Service Pack 2
<http://tinyurl.com/3tdb7>
* Microsoft Windows XP 64-Bit Edition Service Pack 1 (Itanium)
<http://tinyurl.com/5lp39>
* Microsoft Windows XP 64-Bit Edition Version 2003 (Itanium)
<http://tinyurl.com/4pj78>
* Microsoft Windows Server 2003
<http://tinyurl.com/6huwa>
* Microsoft Windows Server 2003 for Itanium-based Systems Microsoft Windows 98, Microsoft Windows 98 Second Edition (SE), and Microsoft Windows Millennium Edition (ME) - Review the FAQ section of this bulletin for details about these operating systems. Windows Server 2003 (all versions)
<http://tinyurl.com/4pj78>

Technical Description:
----------------------
* Font Vulnerability - CAN-2005-0060: A privilege elevation vulnerability exists in the way that Windows process certain fonts. This vulnerability could allow a logged on user to take complete control of the system.

* Windows Kernel Vulnerability - CAN-2005-0061: A privilege elevation vulnerability exists in the way that the affected operating system versions process certain access requests. This vulnerability could allow a logged on user to take complete control of the system.

* Object Management Vulnerability - CAN-2005-0550: A denial of service vulnerability exists that could allow an attacker to send a specially crafted request locally to an affected operating system version. An attacker who exploited this vulnerability could cause the affected system to stop responding and automatically restart

* CSRSS Vulnerability - CAN-2005-0551: A privilege elevation vulnerability exists in the way that the affected operating system versions process certain access requests. This vulnerability could allow a logged on user to take complete control of the system.

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Cheers,
Russ Cooper - Senior Scientist - Cybertrust/NTBugtraq Editor

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NTBugtraq Editor's Note:

Most viruses these days use spoofed email addresses. As such, using an Anti-Virus product which automatically notifies the perceived sender of a message it believes is infected may well cause more harm than good. Someone who did not actually send you a virus may receive the notification and scramble their support staff to find an infection which never existed in the first place. Suggest such notifications be disabled by whomever is responsible for your AV, or at least that the idea is considered.
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