HTTP/2 Server Denial of Service Vulnerability
CVE-2018-0956 is fixed in 13 products on 1 platform, first by KB4093109, released April 10, 2018. It is not reported as exploited. Patch Radar priority: High.
<p>A denial of service vulnerability exists in the HTTP/2 protocol stack (HTTP.sys) when HTTP.sys improperly parses specially crafted HTTP/2 requests. An attacker who successfully exploited the vulnerability could create a denial of service condition, causing the target system to become unresponsive.</p> <p>To exploit this vulnerability, an unauthenticated attacker could send a specially crafted HTTP packet to a target system, causing the affected system to become nonresponsive.</p> <p>The update addresses the vulnerability by modifying how the Windows HTTP protocol stack handles HTTP/2 requests. Note that the denial of service vulnerability would not allow an attacker to execute code or to elevate user rights.</p>
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Microsoft | |||
| Windows 10 Version 1511 for 32-bit Systems | 10586.1540 | KB4093109 | Apr 10, 2018 |
| Windows 10 Version 1511 for x64-based Systems | 10586.1540 | KB4093109 | Apr 10, 2018 |
| Windows 10 Version 1607 for 32-bit Systems | 14393.2189 | KB4093119 | Apr 10, 2018 |
| Windows 10 Version 1607 for x64-based Systems | 14393.2189 | KB4093119 | Apr 10, 2018 |
| Windows 10 Version 1703 for 32-bit Systems | 15063.1029 | KB4093107 | Apr 10, 2018 |
| Windows 10 Version 1703 for x64-based Systems | 15063.1029 | KB4093107 | Apr 10, 2018 |
| Windows 10 Version 1709 for 32-bit Systems | 16299.371 | KB4093112 | Apr 10, 2018 |
| Windows 10 Version 1709 for x64-based Systems | 16299.371 | KB4093112 | Apr 10, 2018 |
| Windows 10 for 32-bit Systems | 10240.17831 | KB4093111 | Apr 10, 2018 |
| Windows 10 for x64-based Systems | 10240.17831 | KB4093111 | Apr 10, 2018 |
| Windows Server 2016 | 14393.2189 | KB4093119 | Apr 10, 2018 |
| Windows Server 2016 (Server Core installation) | 14393.2189 | KB4093119 | Apr 10, 2018 |
| Windows Server, version 1709 (Server Core Installation) | 16299.371 | KB4093112 | Apr 10, 2018 |
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