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Category:   Application (Generic)  >   Microsoft Hyper-V Vendors:   Microsoft
Microsoft Hyper-V Input Validation Flaw Lets Local Guest Users Obtain Potentially Sensitive Host System Memory Information
SecurityTracker Alert ID:  1040662
SecurityTracker URL:  http://securitytracker.com/id/1040662
CVE Reference:   CVE-2018-0957, CVE-2018-0964   (Links to External Site)
Date:  Apr 10 2018
Impact:   Disclosure of system information
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 8.1, RT 8.1, 2012 R2, 2016, 10, 10 Version 1511, 10 Version 1607, 10 Version 1703, 10 Version 1709
Description:   Two vulnerabilities were reported in Microsoft Hyper-V. A local user on the guest system can obtain potentially sensitive information from system memory on the host system.

A local user on the guest system can run a specially crafted application to trigger an input validation flaw and cause the Hyper-V host operating system to disclose potentially sensitive host system memory information [CVE-2018-0957, CVE-2018-0964].

Impact:   A local user on the guest system can obtain potentially sensitive information from system memory on the host 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-2018-0957
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0964

Vendor URL:  portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0957 (Links to External Site)
Cause:   Access control error
Underlying OS:  Windows (2012), Windows (2016), Windows (8), Windows (10)

Message History:   None.


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