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[Full-disclosure] Secunia Research: Internet Explorer HTML Objects Memory Corruption Vulnerability

Description

====================================================================== Secunia Research 09/05/2007 - Internet Explorer HTML Objects Memory Corruption Vulnerability - ====================================================================== Table of Contents Affected Software....................................................1 Severity.............................................................2 Vendor's Description of Software.....................................3 Description of Vulnerability.........................................4 Solution.............................................................5 Time Table...........................................................6 Credits..............................................................7 References...........................................................8 About Secunia........................................................9 Verification........................................................10 ====================================================================== 1) Affected Software * Microsoft Internet Explorer 7 ====================================================================== 2) Severity Rating: Moderately Critical Impact: System Access Where: Remote ====================================================================== 3) Vendor's Description of Software Internet Explorer 7 provides improved navigation through tabbed browsing, web search right from the toolbar, advanced printing, easy discovery, reading and subscription to RSS feeds, and much more. http://www.microsoft.com/windows/products/winfamily/ie/default.mspx ====================================================================== 4) Description of Vulnerability Secunia Research has discovered a vulnerability in Internet Explorer, which can be exploited by malicious people to compromise a vulnerable system. The vulnerability is caused due to an error in the handling of HTML objects as a CMarkup object is used in certain cases after it has been freed. This can be exploited to corrupt memory via a specially crafted web page. Successful exploitation allows execution of arbitrary code. ====================================================================== 5) Solution Apply patches (see the Microsoft security bulletin for details). ====================================================================== 6) Time Table 18/01/2007 - Vendor notified. 19/01/2007 - Vendor response. 09/05/2007 - Public disclosure. ====================================================================== 7) Credits Discovered by JJ Reyes, Secunia Research. ====================================================================== 8) References MS07-027 (KB931768): http://www.microsoft.com/technet/security/Bulletin/MS07-027.mspx The Common Vulnerabilities and Exposures (CVE) project has assigned CVE-2007-0947 for the vulnerability. ====================================================================== 9) About Secunia Secunia offers vulnerability management solutions to corporate customers with verified and reliable vulnerability intelligence relevant to their specific system configuration: http://corporate.secunia.com/ Secunia also provides a publicly accessible and comprehensive advisory database as a service to the security community and private individuals, who are interested in or concerned about IT-security. http://secunia.com/ Secunia believes that it is important to support the community and to do active vulnerability research in order to aid improving the security and reliability of software in general: http://corporate.secunia.com/secunia_research/33/ Secunia regularly hires new skilled team members. Check the URL below to see currently vacant positions: http://secunia.com/secunia_vacancies/ Secunia offers a FREE mailing list called Secunia Security Advisories: http://secunia.com/secunia_security_advisories/ ====================================================================== 10) Verification Please verify this advisory by visiting the Secunia website: http://secunia.com/secunia_research/2007-36/ Complete list of vulnerability reports published by Secunia Research: http://secunia.com/secunia_research/ ====================================================================== _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/


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