Lucene search

K
securityvulnsSecurityvulnsSECURITYVULNS:DOC:21990
HistoryJun 11, 2009 - 12:00 a.m.

FortiGuard Advisory: Microsoft Internet Explorer DHTML Handling Remote Memory Corruption Vulnerability

2009-06-1100:00:00
vulners.com
19

Microsoft Internet Explorer DHTML Handling Remote Memory Corruption Vulnerability
2009.June.09

Fortinet's FortiGuard Global Security Research Team Discovers Memory Corruption Vulnerability in
Microsoft's Internet Explorer.

Summary:

A memory corruption vulnerability exists in the DHTML handling of Microsoft's Internet Explorer
which allows a remote attacker to compromise a system through a malicious site.

Impact:

Remote Code Execution.

Risk:

Critical

Affected Software:

For a list of operating system and product versions affected, please see the Microsoft Bulletin
reference below.

Additional Information:

The vulnerability occurs when Internet Explorer processes special DHTML functions. A crash may
happen when destroying a window after making a sequence of calls on the "tr" element. These calls
are linked to the insertion, deletion and attributes of a table cell. The crash may then allow the
arbitrary execution of code on the browsers machine.

Solutions:

Use the solution provided by Microsoft (MS09-019).
The FortiGuard Global Security Research Team released a signature
"MS.IE.DHTML.Function.Remote.Code.Execution", which covers this specific vulnerability.

Fortinet customers who subscribe to Fortinet's intrusion prevention (IPS) service should be
protected against this memory corruption vulnerability. Fortinet's IPS service is one component of
FortiGuard Subscription Services, which also offer comprehensive solutions such as antivirus, Web
content filtering and antispam capabilities. These services enable protection against threats on
both application and network layers. FortiGuard Services are continuously updated by the FortiGuard
Global Security Research Team, which enables Fortinet to deliver a combination of multi-layered
security intelligence and true zero-day protection from new and emerging threats. These updates are
delivered to all FortiGate, FortiMail and FortiClient products. Fortinet strictly follows
responsible disclosure guidelines to ensure optimum protection during a threat's lifecycle.

References:

FortiGuard Advisory: http://www.fortiguardcenter.com/advisory/FGA-2009-22.html
Microsoft Bulletin: http://www.microsoft.com/technet/security/bulletin/ms09-019.mspx
CVE ID: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1141

Acknowledgement:

Haifei Li of Fortinet's FortiGuard Global Security Research Team

*** This email and any attachments thereto may contain private, confidential, and privileged
material for the sole use of the intended recipient. Any review, copying, or distribution of this
email (or any attachments thereto) by others is strictly prohibited. If you are not the intended
recipient, please contact the sender immediately and permanently delete the original and any copies
of this email and any attachments thereto. ***

Related for SECURITYVULNS:DOC:21990