Windows Kernel 'win32k.sys' Bugs Let Local Users Deny Service and Gain Elevated Privileges
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SecurityTracker Alert ID: 1038449 |
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SecurityTracker URL: http://securitytracker.com/id/1038449
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CVE Reference:
CVE-2017-0246, CVE-2017-0263
(Links to External Site)
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Date: May 10 2017
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Impact:
Denial of service via local system, Root access via local system
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Fix Available: Yes Vendor Confirmed: Yes
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Version(s): 7 SP1, 2008 R2 SP1, 2008 SP2, 2012, 2012 R2, 2016, 8.1 RT 8.1, 10, 10 Version 1511, 10 Version 1607, 10 Version 1703
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Description:
Two vulnerabilities were reported in Windows Kernel. A local user can cause denial of service conditions on the target system. A local user can gain elevated privileges on the target system.
A local user can run a specially crafted application to trigger an object memory handling error in 'win32k.sys' and cause denial of service or gain elevated privileges on the target system [CVE-2017-0246].
A local user can run a specially crafted application to trigger an object memory handling error in 'win32k.sys' and gain elevated privileges on the target system [CVE-2017-0263].
Rancho Ice, Huang Jialong Tencent Security ZhanluLab, Mikhail Tsvetkov of Positive Technologies, Thomas Dupuy and Jessy Campos of ESET, and Dhanesh Kizhakkinan of FireEye Inc reported these vulnerabilities.
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Impact:
A local user can cause denial of service conditions on the target system.
A local user can obtain elevated privileges on the target system.
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Solution:
The vendor has issued a fix.
The Microsoft advisories are available at:
https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4016871
https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4019215
https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4019214
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
https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4019264
https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4019204
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Vendor URL: portal.msrc.microsoft.com/en-us/security-guidance/releasenotedetail/bc365363-f51e-e711-80da-000d3a32fc99 (Links to External Site)
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Cause:
Access control error
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Message History:
None.
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Source Message Contents
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[Original Message Not Available for Viewing]
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