Internet Explorer Multiple Event Handlers Memory Corruption Vulnerability - Secunia Advisories - Vulnerability Intelligence

Internet Explorer Multiple Event Handlers Memory Corruption Vulnerability
Secunia Advisory:	SA19269	Advisory Toolbox: Issue ticket Save in to-do list Mark as handled Exploit information Download as PDF Review actions Add comment
Release Date:	2006-03-20
Last Update:	2006-04-12
Popularity:	22,890 views

Critical:	Highly critical
Impact:	System access
Where:	From remote
Solution Status:	Vendor Patch

Software:	Microsoft Internet Explorer 5.01 Microsoft Internet Explorer 5.5 Microsoft Internet Explorer 6.x

Subscribe:	Instant alerts on relevant vulnerabilities

CVE reference:	CVE-2006-1245

Description: Michal Zalewski has discovered a vulnerability in Internet Explorer, which potentially can be exploited by malicious people to compromise a user's system. The vulnerability is caused due to an array boundary error in the handling of HTML tags with multiple event handlers (e.g. onLoad). This can be exploited to corrupt memory in a way that may allow execution of arbitrary code via a malicious HTML document containing an HTML tag with 94 or more event handlers. The vulnerability has been confirmed on a fully patched system with Internet Explorer 6.0 and Microsoft Windows XP SP2. Solution: Apply patches. Internet Explorer 5.01 SP4 on Windows 2000 SP4: http://www.microsoft.com/downloa...7B87-AF8F-4346-9164-596E3E5C22B1 Internet Explorer 6 SP1 on Windows 2000 SP4 or Windows XP SP1: http://www.microsoft.com/downloa...41E1-2B36-4696-987A-099FC57E0129 Internet Explorer 6 for Windows XP SP2: http://www.microsoft.com/downloa...FB31-E6B4-4771-81F1-4ACCEBF72133 Internet Explorer 6 for Windows Server 2003 and Windows Server 2003 SP1: http://www.microsoft.com/downloa...6871-D217-41D3-BECC-B27FAFA00054 Internet Explorer 6 for Windows Server 2003 for Itanium-based systems and Windows Server 2003 with SP1 for Itanium-based systems: http://www.microsoft.com/downloa...957C-0ABE-4129-ABAF-AA2852AD62A3 Internet Explorer 6 for Windows Server 2003 x64 Edition: http://www.microsoft.com/downloa...8BE3-39EE-4937-9BD1-280FC35125C6 Internet Explorer 6 for Windows XP Professional x64 Edition: http://www.microsoft.com/downloa...FE3E-620A-4BBC-868B-CA2D9EFF7AC3 Internet Explorer 6 SP1 on Windows 98, Windows 98 SE, or Windows ME: Patches are available via the Microsoft Update Web site or the Windows Update Web site. Provided and/or discovered by: Michal Zalewski Changelog: 2006-04-12: Updated "Description" and "Solution" sections. Added CVE reference. Added link to Microsoft security bulletin. Added link to US-CERT vulnerability note. Original Advisory: MS06-013 (KB912812): http://www.microsoft.com/technet/security/Bulletin/MS06-013.mspx Other References: US-CERT VU#984473: http://www.kb.cert.org/vuls/id/984473

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