Windows DNSAPI Remote Code Execution Vulnerability
CVE-2017-11779 is fixed in 17 products on 1 platform, first by KB4041689, released October 10, 2017. It is not reported as exploited. Patch Radar priority: Urgent.
<p>A remote code execution vulnerability exists in Windows <a href="https://technet.microsoft.com/en-us/library/security/dn848375.aspx#DNS">Domain Name System (DNS)</a> DNSAPI.dll when it fails to properly handle DNS responses. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the Local System Account.</p> <p>To exploit the vulnerability, the attacker would use a malicious DNS server to send corrupted DNS responses to the target.</p> <p>The update addresses the vulnerability by modifying how Windows DNSAPI.dll handles DNS responses.</p>
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Microsoft | |||
| Windows 10 Version 1511 for 32-bit Systems | 10586.1176 | KB4041689 | Oct 10, 2017 |
| Windows 10 Version 1511 for x64-based Systems | 10586.1176 | KB4041689 | Oct 10, 2017 |
| Windows 10 Version 1607 for 32-bit Systems | 14393.1770 | KB4041691 | Oct 10, 2017 |
| Windows 10 Version 1607 for x64-based Systems | 14393.1770 | KB4041691 | Oct 10, 2017 |
| Windows 10 Version 1703 for 32-bit Systems | 15063.674 | KB4041676 | Oct 10, 2017 |
| Windows 10 Version 1703 for x64-based Systems | 15063.674 | KB4041676 | Oct 10, 2017 |
| Windows 10 for 32-bit Systems | 10240.17643 | KB4042895 | Oct 10, 2017 |
| Windows 10 for x64-based Systems | 10240.17643 | KB4042895 | Oct 10, 2017 |
| Windows 8.1 for 32-bit systems | KB4041693 | Oct 10, 2017 | |
| Windows 8.1 for 32-bit systems | KB4041687 | Oct 10, 2017 | |
| Windows 8.1 for x64-based systems | KB4041693 | Oct 10, 2017 | |
| Windows 8.1 for x64-based systems | KB4041687 | Oct 10, 2017 | |
| Windows RT 8.1 | KB4041693 | Oct 10, 2017 | |
| Windows Server 2012 | KB4041690 | Oct 10, 2017 | |
| Windows Server 2012 | KB4041679 | Oct 10, 2017 | |
| Windows Server 2012 (Server Core installation) | KB4041690 | Oct 10, 2017 | |
| Windows Server 2012 (Server Core installation) | KB4041679 | Oct 10, 2017 | |
| Windows Server 2012 R2 | KB4041693 | Oct 10, 2017 | |
| Windows Server 2012 R2 | KB4041687 | Oct 10, 2017 | |
| Windows Server 2012 R2 (Server Core installation) | KB4041693 | Oct 10, 2017 | |
| Windows Server 2012 R2 (Server Core installation) | KB4041687 | Oct 10, 2017 | |
| Windows Server 2016 | 14393.1770 | KB4041691 | Oct 10, 2017 |
| Windows Server 2016 (Server Core installation) | 14393.1770 | KB4041691 | Oct 10, 2017 |