Windows TDX Elevation of Privilege Vulnerability
CVE-2017-0296 is fixed in 27 products on 1 platform, first by KB4022714, released June 13, 2017. It is not reported as exploited, but the vendor rates exploitation more likely. Patch Radar priority: Urgent.
<p>An elevation of privilege vulnerability exists when tdx.sys fails to check the length of a buffer prior to copying memory to it.</p> <p>To exploit the vulnerability, in a local attack scenario, an attacker could run a specially crafted application to elevate the attacker's privilege level. An attacker who successfully exploited this vulnerability could run processes in an elevated context.</p> <p>However, an attacker must first gain access to the local system with the ability to execute a malicious application in order to exploit this vulnerability.</p> <p>The security update addresses the vulnerability by changing how tdx.sys validates buffer length.</p>
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Microsoft | |||
| Windows 10 Version 1511 for 32-bit Systems | 10586.962 | KB4022714 | Jun 13, 2017 |
| Windows 10 Version 1511 for x64-based Systems | 10586.962 | KB4022714 | Jun 13, 2017 |
| Windows 10 Version 1607 for 32-bit Systems | 14393.1358 | KB4022715 | Jun 13, 2017 |
| Windows 10 Version 1607 for x64-based Systems | 14393.1358 | KB4022715 | Jun 13, 2017 |
| Windows 10 Version 1703 for 32-bit Systems | KB4022725 | Jun 13, 2017 | |
| Windows 10 Version 1703 for x64-based Systems | KB4022725 | Jun 13, 2017 | |
| Windows 10 for 32-bit Systems | 10240.17443 | KB4022727 | Jun 13, 2017 |
| Windows 10 for x64-based Systems | 10240.17443 | KB4022727 | Jun 13, 2017 |
| Windows 7 for 32-bit Systems Service Pack 1 | KB4022719 | Jun 13, 2017 | |
| Windows 7 for 32-bit Systems Service Pack 1 | KB4022722 | Jun 13, 2017 | |
| Windows 7 for x64-based Systems Service Pack 1 | KB4022719 | Jun 13, 2017 | |
| Windows 7 for x64-based Systems Service Pack 1 | KB4022722 | Jun 13, 2017 | |
| Windows 8.1 for 32-bit systems | KB4022717 | Jun 13, 2017 | |
| Windows 8.1 for 32-bit systems | KB4022726 | Jun 13, 2017 | |
| Windows 8.1 for x64-based systems | KB4022717 | Jun 13, 2017 | |
| Windows 8.1 for x64-based systems | KB4022726 | Jun 13, 2017 | |
| Windows RT 8.1 | KB4022726 | Jun 13, 2017 | |
| Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 | KB4022719 | Jun 13, 2017 | |
| Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 | KB4022722 | Jun 13, 2017 | |
| Windows Server 2008 R2 for x64-based Systems Service Pack 1 | KB4022719 | Jun 13, 2017 | |
| Windows Server 2008 R2 for x64-based Systems Service Pack 1 | KB4022722 | Jun 13, 2017 | |
| Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) | KB4022719 | Jun 13, 2017 | |
| Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) | KB4022722 | Jun 13, 2017 | |
| Windows Server 2008 for 32-bit Systems Service Pack 2 | KB4021923 | Jun 13, 2017 | |
| Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) | KB4021923 | Jun 13, 2017 | |
| Windows Server 2008 for Itanium-Based Systems Service Pack 2 | KB4021923 | Jun 13, 2017 | |
| Windows Server 2008 for x64-based Systems Service Pack 2 | KB4021923 | Jun 13, 2017 | |
| Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) | KB4021923 | Jun 13, 2017 | |
| Windows Server 2012 | KB4022724 | Jun 13, 2017 | |
| Windows Server 2012 | KB4022718 | Jun 13, 2017 | |
| Windows Server 2012 (Server Core installation) | KB4022724 | Jun 13, 2017 | |
| Windows Server 2012 (Server Core installation) | KB4022718 | Jun 13, 2017 | |
| Windows Server 2012 R2 | KB4022717 | Jun 13, 2017 | |
| Windows Server 2012 R2 | KB4022726 | Jun 13, 2017 | |
| Windows Server 2012 R2 (Server Core installation) | KB4022717 | Jun 13, 2017 | |
| Windows Server 2012 R2 (Server Core installation) | KB4022726 | Jun 13, 2017 | |
| Windows Server 2016 | 14393.1358 | KB4022715 | Jun 13, 2017 |
| Windows Server 2016 (Server Core installation) | 14393.1358 | KB4022715 | Jun 13, 2017 |