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Category:   Application (Generic)  >   Microsoft .NET Vendors:   Microsoft
Microsoft .NET Flaws Let Remote Users Deny Service and Bypass Certificate Security Restrictions
SecurityTracker Alert ID:  1040152
SecurityTracker URL:  http://securitytracker.com/id/1040152
CVE Reference:   CVE-2018-0764, CVE-2018-0786   (Links to External Site)
Date:  Jan 10 2018
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 4.5.2, 4.6, 4.6.1, 4.7, , .NET Core 1.0, .NET Core 2.0, 3.5, 2.0 SP2, 3.5.1, .NET Core 1.1
Description:   Two vulnerabilities were reported in Microsoft .NET. A remote user can cause denial of service conditions on the target system. A remote user can bypass security controls on the target system.

A remote user can send specially crafted XML data to cause denial of service conditions on the target application [CVE-2018-0764].

A remote user can bypass certificate Enhanced Key Usage tag security controls on the target system and use a certificate marked invalid for a specific use to be used to perform that specific use [CVE-2018-0786].

Impact:   A remote user can cause denial of service conditions on the target application.

A remote user can bypass certificate security controls on the target 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-2018-0764
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0786

Vendor URL:  portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0786 (Links to External Site)
Cause:   Access control error
Underlying OS:  Windows (2008), Windows (2012), Windows (2016), Windows (7), Windows (8), Windows (10)

Message History:   None.


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