Microsoft Internet Explorer Gopher client malformed reply buffer overflow

ie-gopher-bo (9247) The risk level is classified as HighHigh Risk

Description:

The Gopher protocol is vulnerable to a buffer overflow in the built-in Gopher client. A remote attacker could exploit this vulnerability by creating a Web page or an HTML email that redirects a victim to a malicious Gopher server, which could be used to overflow a buffer in the code in Internet Explorer that handles Gopher replies. An attacker could use this vulnerability to execute arbitrary code and gain complete control of the victim's computer.


Consequences:

Gain Access

Remedy:

Apply the appropriate patch for your system, as listed in the latest Microsoft Security Bulletin. See References.

— OR —

Use Microsoft Automatic Update if it is supported by your operating system. The original bulletin issued by Microsoft has been superseded.

References:

Platforms Affected:

  • Microsoft Internet Explorer 5.01
  • Microsoft Internet Explorer 5.5
  • Microsoft Internet Explorer 6.0
  • Microsoft ISA Server 2000
  • Microsoft Proxy Server 2.0

Reported:

Jun 04, 2002

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