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Category:   OS (Microsoft)  >   Windows HTTP Services Vendors:   Microsoft
Windows HTTP Protocol Stack (HTTP.sys) Bugs Let Remote Users Deny Service and Execute Arbitrary Code
SecurityTracker Alert ID:  1041094
SecurityTracker URL:  http://securitytracker.com/id/1041094
CVE Reference:   CVE-2018-8226, CVE-2018-8231   (Links to External Site)
Date:  Jun 12 2018
Impact:   Denial of service via network, Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 2016, 10, 10 Version 1607, 10 Version 1703, 10 Version 1709, 10 Version 1803
Description:   Two vulnerabilities were reported in Windows HTTP Services. A remote user can cause denial of service conditions on the target system. A remote user can execute arbitrary code on the target system.

A remote user can send a specially crafted HTTP 2.0 request to trigger a parsing error in 'HTTP.sys' and cause the target system to become unresponsive [CVE-2018-8226].

A remote user can send a specially crafted packet to trigger an object memory handling error error in 'HTTP.sys' and execute arbitrary code on the target system [CVE-2018-8231].

Impact:   A remote user can cause the target system to become unresponsive.

A remote user can execute arbitrary code 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-2018-8226
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8231

Vendor URL:  portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8226 (Links to External Site)
Cause:   Access control error, Input validation error

Message History:   None.


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