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Category:   Application (Web Browser)  >   Microsoft Edge Vendors:   Microsoft
Microsoft Edge Object Memory Handling Flaw in Chakra JavaScript Engine Lets Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1038431
SecurityTracker URL:  http://securitytracker.com/id/1038431
CVE Reference:   CVE-2017-0234, CVE-2017-0236   (Links to External Site)
Date:  May 9 2017
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   Two vulnerabilities were reported in Microsoft Edge. A remote user can cause arbitrary code to be executed on the target user's system.

A remote user can create specially crafted content that, when loaded by the target user, will trigger an object memory handling error in the Chakra JavaScript engine and execute arbitrary code on the target user's system. The code will run with the privileges of the target user.

This vulnerability can also be exploited via an embedded ActiveX control marked as "safe for initialization" in an application or Microsoft Office document.

Yuange of Tencent Zhanlu Lab reported one vulnerability.

Impact:   A remote user can create content that, when loaded by the target user, will execute arbitrary code on the target user's system.
Solution:   The vendor has issued a fix.

A restart is required.

The Microsoft advisories are available at:

https://portal.msrc.microsoft.com/en-us/security-guidance/releasenotedetail/bc365363-f51e-e711-80da-000d3a32fc99
https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4016871
https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4019472
https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4019473
https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4019474

Vendor URL:  portal.msrc.microsoft.com/en-us/security-guidance/releasenotedetail/bc365363-f51e-e711-80da-000d3a32fc99 (Links to External Site)
Cause:   Access control error
Underlying OS:  Windows (10)
Underlying OS Comments:  10, 10 Version 1511, 10 Version 1607, 10 Version 1703

Message History:   None.


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