Advisory Details

June 10th, 2009

Microsoft Internet Explorer Event Handler Memory Corruption Vulnerability

ZDI-09-038
ZDI-CAN-428

CVE ID CVE-2009-1530
CVSS SCORE
AFFECTED VENDORS Microsoft
AFFECTED PRODUCTS Internet Explorer
VULNERABILITY DETAILS

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Microsoft Internet Explorer. User interaction is required to exploit this vulnerability in that the target must visit a malicious page.

The specific flaw exists when repeatedly calling event handlers after adding nodes of an HTML document. When a specially crafted webpage is repeatedly rendered, memory is improperly reused after it has been freed. Due to the controllable nature of the web browser, this vulnerability can be exploited to remotely compromise a system running under the security context of the currently logged in user.

VENDOR RESPONSE Microsoft has issued an update to correct this vulnerability. More details can be found at:
http://www.microsoft.com/technet/security/bulletin/MS09-019.mspx
DISCLOSURE TIMELINE
  • 2009-01-26 - Vulnerability reported to vendor
  • 2009-06-10 - Coordinated public release of advisory
CREDIT ling&wushi of team509
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