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Category:   Application (Web Browser)  >   Microsoft Internet Explorer Vendors:   Microsoft
Microsoft Internet Explorer Multiple Flaws Let Remote Users Obtain Potentially Sensitive Cross-Domain Information and Execute Arbitrary Code
SecurityTracker Alert ID:  1039343
SecurityTracker URL:  http://securitytracker.com/id/1039343
CVE Reference:   CVE-2017-8736, CVE-2017-8741, CVE-2017-8748, CVE-2017-8750   (Links to External Site)
Date:  Sep 13 2017
Impact:   Disclosure of system information, Disclosure of user information, Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 9, 10, 11
Description:   Several vulnerabilities were reported in Microsoft Internet Explorer. A remote user can cause arbitrary code to be executed on the target user's system. A remote user can obtain potentially sensitive information on the target system.

A remote user can create a specially crafted ActiveX control marked "safe for initialization" in an application or Microsoft Office document that hosts the related rendering engine that, when loaded by the target user, will trigger a memory corruption error in the JavaScript engine and execute arbitrary code on the target user's system [CVE-2017-8748]. Version 11 is affected.

A remote user can create specially crafted content that, when loaded by the target user, will access potentially sensitive information from a parent domain [CVE-2017-8736]. Version 11 is affected.

A remote user can create a specially crafted ActiveX control marked "safe for initialization" in an application or Microsoft Office document that hosts the related rendering engine that, when loaded by the target user, will trigger a memory corruption error in the JavaScript engine and execute arbitrary code on the target user's system [CVE-2017-8741].

A remote user can create specially crafted content that, when loaded by the target user, will trigger a memory corruption error in the browser and execute arbitrary code on the target user's system [CVE-2017-8750].

Jun Kokatsu (@shhnjk), Microsoft ChakraCore Team, and likemeng of Baidu Security Lab (via Trend Micro Zero Day Initiative) reported these vulnerabilities.

Impact:   A remote user can create content that, when loaded by the target user, will execute arbitrary code on the target user's system.

A remote user can obtain potentially sensitive information from another domain.

Solution:   The vendor has issued a fix.

The Microsoft advisories are available at:

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8736
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8741
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8748
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8750

Vendor URL:  portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8748 (Links to External Site)
Cause:   Access control error
Underlying OS:  Windows (Any)

Message History:   None.


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