---------------------------------------------------------------------- Try a new way to discover vulnerabilities that ALREADY EXIST in your IT infrastructure. The Secunia NSI enables you to INSPECT, DISCOVER, and DOCUMENT vulnerabilities in more than 4,700 different Windows applications. Request your account, the Secunia Network Software Inspector (NSI): http://secunia.com/network_software_inspector/ ---------------------------------------------------------------------- TITLE: Internet Explorer File Download Handling Memory Corruption SECUNIA ADVISORY ID: SA23469 VERIFY ADVISORY: http://secunia.com/advisories/23469/ CRITICAL: Highly critical IMPACT: System access WHERE: >From remote SOFTWARE: Microsoft Internet Explorer 7.x http://secunia.com/product/12366/ Microsoft Internet Explorer 6.x http://secunia.com/product/11/ Microsoft Internet Explorer 5.01 http://secunia.com/product/9/ 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 an error in the file download queue handling when processing multiple concurrent attempts to start a file download. This can be exploited via a specially crafted web page to corrupt memory in a way that results in use of an already freed object. Successful exploitation allows execution of arbitrary code. SOLUTION: Apply patches. Windows 2000 SP4 and Internet Explorer 5.01 SP4: http://www.microsoft.com/downloads/details.aspx?FamilyId=95827F3F-A984-4E34-A949-D16A0614121A Windows 2000 SP4 and Internet Explorer 6 SP1: http://www.microsoft.com/downloads/details.aspx?FamilyId=DF3BA596-7C5B-4151-9884-6957AA884AAB Windows XP SP2 and Internet Explorer 6: http://www.microsoft.com/downloads/details.aspx?FamilyId=513A8320-6D36-4FC9-A38A-867192B55B53 Windows XP Professional x64 Edition (optionally with SP2) and Internet Explorer 6: http://www.microsoft.com/downloads/details.aspx?FamilyId=AE8A26D8-1910-4B8C-8A73-6E2FA6B5B29F Windows Server 2003 SP1/SP2 and Internet Explorer 6: http://www.microsoft.com/downloads/details.aspx?FamilyId=4AEFAA38-8757-4E6E-8924-57CABD1C2FC3 Windows Server 2003 x64 Edition (optionally with SP2) and Internet Explorer 6: http://www.microsoft.com/downloads/details.aspx?FamilyId=88ABA9DD-653B-4CDF-A513-CCA32A7D7E41 Windows Server 2003 with SP1/SP2 for Itanium-based systems and Internet Explorer 6: http://www.microsoft.com/downloads/details.aspx?FamilyId=309A8F10-C7EA-4961-A969-092B0C4D7BBC Windows XP SP2 and Internet Explorer 7: http://www.microsoft.com/downloads/details.aspx?FamilyId=4CA0AC93-BF51-40FE-A1BA-CB3E0A36D8B5 Windows XP Professional x64 Edition (optionally with SP2) and Internet Explorer 7: http://www.microsoft.com/downloads/details.aspx?FamilyId=DBD284D0-2664-42A4-AD16-A0535244C81C Windows Server 2003 SP1/SP2 and Internet Explorer 7: http://www.microsoft.com/downloads/details.aspx?FamilyId=0A31C451-32F4-4551-AE45-D600F8B3B11B Windows Server 2003 x64 Edition (optionally with SP2) and Internet Explorer 7: http://www.microsoft.com/downloads/details.aspx?FamilyId=C1915633-D181-4CA1-A4F0-7CA0F865AA72 Windows Server 2003 with SP1/SP2 for Itanium-based systems and Internet Explorer 7: http://www.microsoft.com/downloads/details.aspx?FamilyId=093A2250-3BE3-494F-80E0-89CA7217030F Windows Vista and Internet Explorer 7: http://www.microsoft.com/downloads/details.aspx?FamilyId=86392E8D-098C-427F-A233-699CDB9375AE Windows Vista x64 Edition and Internet Explorer 7: http://www.microsoft.com/downloads/details.aspx?FamilyId=62490E6D-0A21-4A15-90BD-63CA8F8886B6 PROVIDED AND/OR DISCOVERED BY: Carsten Eiram, Secunia Research. ORIGINAL ADVISORY: MS07-057 (KB939653): http://www.microsoft.com/technet/security/Bulletin/MS07-057.mspx Secunia Research: http://secunia.com/secunia_research/2007-31/ ---------------------------------------------------------------------- About: This Advisory was delivered by Secunia as a free service to help everybody keeping their systems up to date against the latest vulnerabilities. Subscribe: http://secunia.com/secunia_security_advisories/ Definitions: (Criticality, Where etc.) http://secunia.com/about_secunia_advisories/ Please Note: Secunia recommends that you verify all advisories you receive by clicking the link. Secunia NEVER sends attached files with advisories. Secunia does not advise people to install third party patches, only use those supplied by the vendor. ---------------------------------------------------------------------- Unsubscribe: Secunia Security Advisories http://secunia.com/sec_adv_unsubscribe/?email=packet%40packetstormsecurity.org ----------------------------------------------------------------------