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Category:   Application (Web Browser)  >   Microsoft Edge Vendors:   Microsoft
Microsoft Edge Object Memory Handling Flaws in Scripting Engines Let Remote Users Execute Arbitrary Code, Bypass a Security Feature, and Obtain Potentially Sensitive Information
SecurityTracker Alert ID:  1039095
SecurityTracker URL:  http://securitytracker.com/id/1039095
CVE Reference:   CVE-2017-8634, CVE-2017-8635, CVE-2017-8636, CVE-2017-8637, CVE-2017-8638, CVE-2017-8639, CVE-2017-8640, CVE-2017-8641, CVE-2017-8645, CVE-2017-8646, CVE-2017-8647, CVE-2017-8653, CVE-2017-8655, CVE-2017-8656, CVE-2017-8657, CVE-2017-8658, CVE-2017-8659, CVE-2017-8661, CVE-2017-8669, CVE-2017-8670, CVE-2017-8671, CVE-2017-8672, CVE-2017-8674   (Links to External Site)
Updated:  Aug 15 2017
Original Entry Date:  Aug 8 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  

Description:   Multiple 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 obtain potentially sensitive information on the target user's system. A remote user can bypass a security feature 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 JavaScript engine and execute arbitrary code on the target user's system [CVE-2017-8634, CVE-2017-8635, CVE-2017-8636, CVE-2017-8638, CVE-2017-8639, CVE-2017-8640, CVE-2017-8641, CVE-2017-8645, CVE-2017-8646, CVE-2017-8647, CVE-2017-8653, CVE-2017-8655, CVE-2017-8656, CVE-2017-8657, CVE-2017-8658, CVE-2017-8661, CVE-2017-8669, CVE-2017-8670, CVE-2017-8671, CVE-2017-8672, CVE-2017-8674].

These vulnerabilities can also be exploited via an embedded ActiveX control marked as "safe for initialization".

A remote user can create specially crafted content that, when loaded by the target user, will bypass the Arbitrary Code Guard (ACG) security feature in the browser's Just-In-Time (JIT) compiler [CVE-2017-8637].

A remote user can create specially crafted content that, when loaded by the target user, will trigger an object memory handling flaw in the Chakra scripting engine and access potentially sensitive information on the target user's system [CVE-2017-8659].

Hao Linan of Qihoo 360 Vulcan Team, Lokihart of Google Project Zero, Huang Anwen, He Xiaoxiao ichunqiu Ker Team, Anonymous (via Trend Micro's Zero Day Initiative), Natalie Silvanovich of Google Project Zero, and Ivan Fratric of Google Project Zero reported these vulnerabilities.

Impact:   A remote user can create content that, when loaded by the target user, will execute arbitrary code, bypass a security feature, or access potentially sensitive information on the target user's system.
Solution:   The vendor has issued a fix.

The Microsoft advisories are available at:

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8634
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8635
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8636
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8637
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8638
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8639
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8640
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8641
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8645
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8646
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8647
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8653
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8655
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8656
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8657
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8658
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8659
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8661
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8669
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8670
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8671
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8672
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8674

Vendor URL:  portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8634 (Links to External Site)
Cause:   Access control error
Underlying OS:  Windows (10)

Message History:   None.


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