Adobe Font Manager Library Remote Code Execution Vulnerability
CVE-2020-0938 is fixed in 41 products on 1 platform, first by KB4550929, released April 14, 2020. It is being exploited: CISA added it to the Known Exploited Vulnerabilities catalog on November 3, 2021. Patch Radar priority: Patch now.
<p>A remote code execution vulnerability exists in Microsoft Windows when the Windows Adobe Type Manager Library improperly handles a specially-crafted multi-master font - Adobe Type 1 PostScript format.</p> <p>For all systems except Windows 10, an attacker who successfully exploited the vulnerability could execute code remotely. For systems running Windows 10, an attacker who successfully exploited the vulnerability could execute code in an AppContainer sandbox context with limited privileges and capabilities. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.</p> <p>There are multiple ways an attacker could exploit the vulnerability, such as convincing a user to open a specially crafted document or viewing it in the Windows Preview pane.</p> <p>The update addresses the vulnerability by correcting how the Windows Adobe Type Manager Library handles Type1 fonts.</p>
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Microsoft | |||
| Windows 10 Version 1607 for 32-bit Systems | 14393.3630 | KB4550929 | Apr 14, 2020 |
| Windows 10 Version 1607 for x64-based Systems | 14393.3630 | KB4550929 | Apr 14, 2020 |
| Windows 10 Version 1709 for 32-bit Systems | 16299.1806 | KB4550927 | Apr 14, 2020 |
| Windows 10 Version 1709 for ARM64-based Systems | 16299.1806 | KB4550927 | Apr 14, 2020 |
| Windows 10 Version 1709 for x64-based Systems | 16299.1806 | KB4550927 | Apr 14, 2020 |
| Windows 10 Version 1803 for 32-bit Systems | 17134.1425 | KB4550922 | Apr 14, 2020 |
| Windows 10 Version 1803 for ARM64-based Systems | 17134.1425 | KB4550922 | Apr 14, 2020 |
| Windows 10 Version 1803 for x64-based Systems | 17134.1425 | KB4550922 | Apr 14, 2020 |
| Windows 10 Version 1809 for 32-bit Systems | 17763.1158 | KB4549949 | Apr 14, 2020 |
| Windows 10 Version 1809 for ARM64-based Systems | 17763.1158 | KB4549949 | Apr 14, 2020 |
| Windows 10 Version 1809 for x64-based Systems | 17763.1158 | KB4549949 | Apr 14, 2020 |
| Windows 10 Version 1903 for 32-bit Systems | KB4549951 | Apr 14, 2020 | |
| Windows 10 Version 1903 for ARM64-based Systems | KB4549951 | Apr 14, 2020 | |
| Windows 10 Version 1903 for x64-based Systems | KB4549951 | Apr 14, 2020 | |
| Windows 10 Version 1909 for 32-bit Systems | KB4549951 | Apr 14, 2020 | |
| Windows 10 Version 1909 for ARM64-based Systems | KB4549951 | Apr 14, 2020 | |
| Windows 10 Version 1909 for x64-based Systems | KB4549951 | Apr 14, 2020 | |
| Windows 10 for 32-bit Systems | 10240.18545 | KB4550930 | Apr 14, 2020 |
| Windows 10 for x64-based Systems | 10240.18545 | KB4550930 | Apr 14, 2020 |
| Windows 7 for 32-bit Systems Service Pack 1 | KB4550965 | Apr 14, 2020 | |
| Windows 7 for 32-bit Systems Service Pack 1 | KB4550964 | Apr 14, 2020 | |
| Windows 7 for x64-based Systems Service Pack 1 | KB4550965 | Apr 14, 2020 | |
| Windows 7 for x64-based Systems Service Pack 1 | KB4550964 | Apr 14, 2020 | |
| Windows 8.1 for 32-bit systems | KB4550961 | Apr 14, 2020 | |
| Windows 8.1 for 32-bit systems | KB4550970 | Apr 14, 2020 | |
| Windows 8.1 for x64-based systems | KB4550961 | Apr 14, 2020 | |
| Windows 8.1 for x64-based systems | KB4550970 | Apr 14, 2020 | |
| Windows RT 8.1 | KB4550961 | Apr 14, 2020 | |
| Windows Server 2008 R2 for x64-based Systems Service Pack 1 | KB4550965 | Apr 14, 2020 | |
| Windows Server 2008 R2 for x64-based Systems Service Pack 1 | KB4550964 | Apr 14, 2020 | |
| Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) | KB4550965 | Apr 14, 2020 | |
| Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) | KB4550964 | Apr 14, 2020 | |
| Windows Server 2008 for 32-bit Systems Service Pack 2 | KB4550957 | Apr 14, 2020 | |
| Windows Server 2008 for 32-bit Systems Service Pack 2 | KB4550951 | Apr 14, 2020 | |
| Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) | KB4550957 | Apr 14, 2020 | |
| Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) | KB4550951 | Apr 14, 2020 | |
| Windows Server 2008 for x64-based Systems Service Pack 2 | KB4550957 | Apr 14, 2020 | |
| Windows Server 2008 for x64-based Systems Service Pack 2 | KB4550951 | Apr 14, 2020 | |
| Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) | KB4550957 | Apr 14, 2020 | |
| Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) | KB4550951 | Apr 14, 2020 | |
| Windows Server 2012 | KB4550917 | Apr 14, 2020 | |
| Windows Server 2012 | KB4550971 | Apr 14, 2020 | |
| Windows Server 2012 (Server Core installation) | KB4550917 | Apr 14, 2020 | |
| Windows Server 2012 (Server Core installation) | KB4550971 | Apr 14, 2020 | |
| Windows Server 2012 R2 | KB4550961 | Apr 14, 2020 | |
| Windows Server 2012 R2 | KB4550970 | Apr 14, 2020 | |
| Windows Server 2012 R2 (Server Core installation) | KB4550961 | Apr 14, 2020 | |
| Windows Server 2012 R2 (Server Core installation) | KB4550970 | Apr 14, 2020 | |
| Windows Server 2016 | 14393.3630 | KB4550929 | Apr 14, 2020 |
| Windows Server 2016 (Server Core installation) | 14393.3630 | KB4550929 | Apr 14, 2020 |
| Windows Server 2019 | 17763.1158 | KB4549949 | Apr 14, 2020 |
| Windows Server 2019 (Server Core installation) | 17763.1158 | KB4549949 | Apr 14, 2020 |
| Windows Server, version 1803 (Server Core Installation) | 17134.1425 | KB4550922 | Apr 14, 2020 |
| Windows Server, version 1903 (Server Core installation) | KB4549951 | Apr 14, 2020 | |
| Windows Server, version 1909 (Server Core installation) | KB4549951 | Apr 14, 2020 | |
Patch Radar data is free to use with attribution. Terms and how to credit it.
Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.