Microsoft Browser Elevation of Privilege Vulnerability
CVE-2016-3387 is fixed in 17 products on 1 platform, first by KB3192441, released October 11, 2016. 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 affected Microsoft browsers fail to properly secure private namespace. An attacker who successfully exploited this vulnerability could gain elevated permissions on the namespace directory of a vulnerable system and gain elevated privileges.</p> <p>The vulnerability by itself does not allow arbitrary code to be run. However, this vulnerability could be used in conjunction with one or more other vulnerabilities (e.g. a remote code execution vulnerability and another elevation of privilege) that could take advantage of the elevated privileges when running.</p> <p>The update addresses the vulnerability by correcting how Microsoft browsers handle namespace boundaries.</p>
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Microsoft | |||
| Internet Explorer 10 on Windows Server 2012 | KB3185332 | Oct 11, 2016 | |
| Internet Explorer 10 on Windows Server 2012 | KB3192393 | Oct 11, 2016 | |
| Internet Explorer 11 on Windows 10 Version 1511 for 32-bit Systems | 10586.633 | KB3192441 | Oct 11, 2016 |
| Internet Explorer 11 on Windows 10 Version 1511 for x64-based Systems | 10586.633 | KB3192441 | Oct 11, 2016 |
| Internet Explorer 11 on Windows 10 Version 1607 for 32-bit Systems | 14393.321 | KB3194798 | Oct 11, 2016 |
| Internet Explorer 11 on Windows 10 Version 1607 for x64-based Systems | 14393.321 | KB3194798 | Oct 11, 2016 |
| Internet Explorer 11 on Windows 10 for 32-bit Systems | 10240.17146 | KB3192440 | Oct 11, 2016 |
| Internet Explorer 11 on Windows 10 for x64-based Systems | 10240.17146 | KB3192440 | Oct 11, 2016 |
| Internet Explorer 11 on Windows 8.1 for 32-bit systems | KB3192392 | Oct 11, 2016 | |
| Internet Explorer 11 on Windows 8.1 for 32-bit systems | KB3185331 | Oct 11, 2016 | |
| Internet Explorer 11 on Windows 8.1 for x64-based systems | KB3192392 | Oct 11, 2016 | |
| Internet Explorer 11 on Windows 8.1 for x64-based systems | KB3185331 | Oct 11, 2016 | |
| Internet Explorer 11 on Windows RT 8.1 | KB3185331 | Oct 11, 2016 | |
| Internet Explorer 11 on Windows Server 2012 R2 | KB3192392 | Oct 11, 2016 | |
| Internet Explorer 11 on Windows Server 2012 R2 | KB3185331 | Oct 11, 2016 | |
| Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1511 for 32-bit Systems | 10586.633 | KB3192441 | Oct 11, 2016 |
| Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1511 for x64-based Systems | 10586.633 | KB3192441 | Oct 11, 2016 |
| Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1607 for 32-bit Systems | 14393.321 | KB3194798 | Oct 11, 2016 |
| Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1607 for x64-based Systems | 14393.321 | KB3194798 | Oct 11, 2016 |
| Microsoft Edge (EdgeHTML-based) on Windows 10 for 32-bit Systems | 10240.17146 | KB3192440 | Oct 11, 2016 |
| Microsoft Edge (EdgeHTML-based) on Windows 10 for x64-based Systems | 10240.17146 | KB3192440 | Oct 11, 2016 |