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Internet Explorer Exception Handling Memory Corruption Vulnerability
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Secunia Advisory:
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SA19762
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Release Date:
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2006-04-25
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Last Update:
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2006-06-15
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Popularity:
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68,905 views
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Critical:
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Highly critical
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Impact:
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System access
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| Software: | Microsoft Internet Explorer 5.01
Microsoft Internet Explorer 6.x
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Subscribe:
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| CVE reference: | CVE-2006-1992
CVE-2006-2218
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Description:
Secunia Research has discovered a vulnerability in Internet Explorer, which can be exploited by malicious people to compromise a user's system.
The vulnerability is caused due to a memory corruption error within the handling of certain exceptional conditions. This can e.g. be exploited by registering an exception handler for an object and then trigger a certain condition via e.g. a certain sequence of nested "object" HTML tags.
Successful exploitation allows execution of arbitrary code when a user e.g. visits a malicious web site.
NOTE: This vulnerability is a variant of a browser crash bug initially reported by Michal Zalewski.
Solution:
Apply patches.
Internet Explorer 5.01 SP4 on Windows 2000 SP4:
http://www.microsoft.com/downloads/de...=91A997DE-BAE4-4AC7-912D-79EF8ABAEF4F
Internet Explorer 6 SP1 on Windows 2000 SP4 or Windows XP SP1:
http://www.microsoft.com/downloads/de...=0EB17A41-FB43-413B-A5CC-41E1F3DEDE4F
Internet Explorer 6 for Windows XP SP2:
http://www.microsoft.com/downloads/de...=85CABE87-C4A0-4F80-BD1C-210E23FD8D81
Internet Explorer 6 for Windows Server 2003 and Windows Server 2003 SP1:
http://www.microsoft.com/downloads/de...=CCE7C875-C9A4-4C3D-A37B-946EE5E781E7
Internet Explorer 6 for Windows Server 2003 for Itanium-based systems (with or without SP1):
http://www.microsoft.com/downloads/de...=C8E4CFB6-1350-4AAE-B681-EE2ECAB41118
Internet Explorer 6 for Windows Server 2003 x64 Edition:
http://www.microsoft.com/downloads/de...=1C7D5C6D-DDCF-485D-A1E3-60E55334FD74
Internet Explorer 6 for Windows XP Professional x64 Edition:
http://www.microsoft.com/downloads/de...=F91791AC-8185-4346-AA66-89F74D4B5EA7
Internet Explorer 6 SP1 on Windows 98, Windows 98 SE, or Windows Me:
Patches are available from the Windows Update web site.
Provided and/or discovered by:
Andreas Sandblad, Secunia Research.
Initial crash bug discovered by:
Michal Zalewski
Changelog:
2006-04-28: Updated "Description" section to clarify that Secunia has successfully exploited the vulnerability.
2006-05-01: Updated "Description" section. During further analysis, it has become clear that the issue successfully exploited by Secunia is a variant of the issue discovered by Michal Zalewski.
2006-05-05: Added CVE reference.
2006-06-13: Updated advisory with additional information from Microsoft.
2006-06-15: Added link to Secunia Research advisory.
Original Advisory:
MS06-021 (KB916281):
http://www.microsoft.com/technet/security/Bulletin/MS06-021.mspx
Secunia Research:
http://secunia.com/secunia_research/2006-41/
Other References:
KB article discussing known issues when installing the update:
http://support.microsoft.com/kb/916281
US-CERT VU#338828:
http://www.kb.cert.org/vuls/id/338828
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About this Secunia Advisory
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
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