Alert: Microsoft Security Bulletin MS05-023 - Vulnerabilities in Microsoft Word May Lead to Remote Code Execution (890169)

Microsoft Security Bulletin MS05-023:
Vulnerabilities in Microsoft Word May Lead to Remote Code Execution (890169)

Bulletin URL:
<http://www.microsoft.com/technet/security/Bulletin/MS05-023.mspx>

Version Number: 1.0
Issued Date: Tuesday, April 12, 2005
Impact of Vulnerability: Remote code execution
Maximum Severity Rating: Critical
Patch(es) Replaced: This bulletin replaces a prior security update. See the frequently asked questions (FAQ) section of this bulletin for the complete list.
Caveats: None

Tested Software:
Affected Software:
------------------
* Microsoft Word 2000 and Microsoft Works Suite 2001
<http://tinyurl.com/3q38n>
* Microsoft Word 2002, Microsoft Works Suite 2002, Microsoft Works Suite 2003, and Microsoft Works Suite 2004 -
<http://tinyurl.com/5zfxp>
* Microsoft Office Word 2003
<http://tinyurl.com/4m94o>

Technical Description:
----------------------
* Buffer Overrun in Microsoft Word CAN-2004-0963: A vulnerability exists in Microsoft Word that could allow an attacker to run arbitrary code on a users system. If a user is logged on with administrative privileges, an attacker who successfully exploited this vulnerability could take complete control of an affected system, including installing programs; viewing, changing, or deleting data; or creating new accounts with full privileges. Users whose accounts are configured to have fewer privileges on the system would be at less risk than users who operate with administrative privileges.

* Buffer Overrun in Microsoft Word CAN-2005-0558: A vulnerability exists in Microsoft Word that could allow an attacker to run arbitrary code on a users system. If a user is logged on with administrative privileges, an attacker who successfully exploited this vulnerability could take complete control of an affected system, including installing programs; viewing, changing, or deleting data; or creating new accounts with full privileges. Users whose accounts are configured to have fewer privileges on the system would be at less risk than users who operate with administrative privileges.

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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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