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Category:   OS (Microsoft)  >   Windows Drivers Vendors:   Microsoft
Windows Common Log File System Driver Object Memory Handling Errors Let Local Users Gain Elevated Privileges
SecurityTracker Alert ID:  1040380
SecurityTracker URL:  http://securitytracker.com/id/1040380
CVE Reference:   CVE-2018-0844, CVE-2018-0846   (Links to External Site)
Date:  Feb 13 2018
Impact:   Root access via local system, User access via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 7 SP1, 2008 R2 SP1, 2008 SP2, 8.1, RT 8.1, 2012, 2012 R2, 2016, 10, 10 Version 1511, 10 Version 1607, 10 Version 1703, 10 Version 1709
Description:   Two vulnerabilities were reported in Windows Common Log File System (CLFS) Driver. A local user can obtain elevated privileges on the target system.

A local user can run a specially crafted application to trigger an object memory handling error in the CLFS driver and run processes with elevated privileges on the target system.

Lucas Leong (@_wmliang_) of Trend Micro reported these vulnerabilities.

Impact:   A local user can obtain elevated privileges 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-2018-0844
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0846

Vendor URL:  portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0844 (Links to External Site)
Cause:   Access control error

Message History:   None.


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