Microsoft Internet Explorer deleted frame access denial of service

ie-deleted-frame-dos (28068) The risk level is classified as MediumMedium Risk

Description:

Microsoft Internet Explorer is vulnerable to a denial of service, caused by a NULL pointer dereference that can occur when attempting to access the property of an object in a deleted frame. A remote attacker could exploit this vulnerability to cause a victim's browser to crash, if the attacker could persuade the victim to visit a malicious Web page.

*CVSS:

Base Score: 2.8
  Access Vector: Remote
  Access Complexity: High
  Authentication: Not Required
  Confidentiality Impact: None
  Integrity Impact: None
  Availability Impact: Partial
 
Temporal Score: 2.2
  Exploitability: Proof-Of-Concept
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Denial of Service

Remedy:

Apply the appropriate patch for your system, as listed in Microsoft Security Bulletin MS06-042. See References.

References:

  • Browser Fun Blog, Saturday, July 29, 2006: MoBB #30: Orphan Object Properties .
  • BID-19228: Microsoft Internet Explorer Deleted Frame Object Denial Of Service Vulnerability
  • CVE-2006-7066: Microsoft Internet Explorer 6 on Windows XP SP2 allows remote attackers to cause a denial of service (crash) by creating an object inside an iframe, deleting the frame by setting its location.href to about:blank, then accessing a property of the object within the deleted frame, which triggers a NULL pointer dereference. NOTE: it was later reported that 7.0.6000.16473 and earlier are also affected.
  • OSVDB ID: 27533: Microsoft IE Orphan Object Property Access NULL Dereference

Platforms Affected:

  • Microsoft Internet Explorer 6.0
  • Microsoft Internet Explorer 6.0 SP2
  • Microsoft Internet Explorer 6.0 SP1

Reported:

Jul 29, 2006

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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

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