Microsoft Internet Explorer Invalid HTML Parsing Code Execution Vulnerability

2006-04-11T00:00:00
ID SMNTC-17450
Type symantec
Reporter Symantec Security Response
Modified 2006-04-11T00:00:00

Description

Description

Microsoft Internet Explorer is prone to a vulnerability that may permit remote attackers to execute arbitrary code. This vulnerability occurs when the browser parses invalid HTML. Attackers can exploit this vulnerability through a malicious web page or HTML email.

Technologies Affected

  • Microsoft Internet Explorer 5.0 for Windows 98
  • Microsoft Internet Explorer 5.0.1
  • 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 5.0.1 for Windows 2000
  • Microsoft Internet Explorer 5.0.1 for Windows 95
  • Microsoft Internet Explorer 5.0.1 for Windows 98
  • Microsoft Internet Explorer 5.0.1 for Windows NT 4.0
  • Microsoft Internet Explorer 6.0

Recommendations

Run all software as a nonprivileged user with minimal access rights.
To reduce the impact of latent vulnerabilities, always run non-administrative software as an unprivileged user with minimal access rights.

Do not follow links provided by unknown or untrusted sources.
Do not follow links provided by unknown or untrusted sources.

Disable any unneccessary default services.
Disable support for HTML email in the email client. This may limit email-based attack vectors for this and other vulnerabilities.

Do not use client software to access unknown or untrusted hosts from critical systems.
Do not visit websites of unknown or questionable integrity. This may limit exposure to this vulnerability.

Microsoft has released a cumulative update to address this issue in affected versions of the browser.