1. /
  2. Security Response/
  3. Microsoft Internet Explorer Speech API 4 COM Object Instantiation Buffer Overflow Vulnerabilities

Microsoft Internet Explorer Speech API 4 COM Object Instantiation Buffer Overflow Vulnerabilities

Risk

High

Date Discovered

June 12, 2007

Description

Microsoft Internet Explorer is prone to multiple buffer-overflow vulnerabilities when instantiating certain COM objects. An attacker may exploit these issues by enticing victims into opening a maliciously crafted webpage. Successfully exploiting these issues allows remote attackers to execute arbitrary machine code in the context of the affected application, facilitating the remote compromise of affected computers.

Technologies Affected

  • Avaya CIE 1.0
  • Avaya Messaging Application Server
  • Avaya Messaging Application Server MM 2.0
  • Avaya Messaging Application Server MM 3.0
  • Avaya Messaging Application Server MM 3.1
  • HP Storage Management Appliance 2.1
  • Microsoft Internet Explorer 5.0
  • Microsoft Internet Explorer 5.0.1 SP1
  • Microsoft Internet Explorer 5.0.1 SP2
  • Microsoft Internet Explorer 5.0.1 SP3
  • Microsoft Internet Explorer 5.0.1 SP4
  • Microsoft Internet Explorer 6.0
  • Microsoft Internet Explorer 6.0 SP1
  • Microsoft Internet Explorer 7.0
  • Nortel Networks Centrex IP Client Manager
  • Nortel Networks Centrex IP Client Manager 7.0.0
  • Nortel Networks Centrex IP Client Manager 8.0.0
  • Nortel Networks Centrex IP Client Manager 9.0

Recommendations

Do not follow links provided by unknown or untrusted sources.

Users should be wary of visiting sites of questionable integrity or following links provided by unfamiliar or suspicious sources.

Set web browser security to disable the execution of script code or active content.

Disabling scripting and active content in the Internet Zone may limit exposure to this and other vulnerabilities.

Implement multiple redundant layers of security.

Various memory-protection schemes (such as nonexecutable and randomly mapped memory segments) may hinder an attacker's ability to exploit this vulnerability to execute arbitrary code.

Run all software as a nonprivileged user with minimal access rights.

To limit the impact of latent vulnerabilities, run the web client as an unprivileged user with minimal access rights.
Microsoft has released an advisory along with fixes to address these issues. Please see the references for more information.

Credits

Will Dorman of CERT/CC and Cocoruder of Fortinet Security Research are credited with discovering this issue.
Copyright © Symantec Corporation.
Permission to redistribute this alert electronically is granted as long as it is not edited in any way unless authorized by Symantec Security Response. Reprinting the whole or part of this alert in any medium other than electronically requires permission from secure@symantec.com.

Disclaimer
The information in the advisory is believed to be accurate at the time of publishing based on currently available information. Use of the information constitutes acceptance for use in an AS IS condition. There are no warranties with regard to this information. Neither the author nor the publisher accepts any liability for any direct, indirect, or consequential loss or damage arising from use of, or reliance on, this information.
Symantec, Symantec products, Symantec Security Response, and secure@symantec.com are registered trademarks of Symantec Corp. and/or affiliated companies in the United States and other countries. All other registered and unregistered trademarks represented in this document are the sole property of their respective companies/owners.

Threat Intelligence

Subscribe
Follow the Threat Intelligence Twitter feed
STAR Antimalware Protection Technologies
Internet Security Threat Report, Volume 17
Symantec DeepSight Screensaver