CVE-2020-4031: Canonical Ubuntu Linux

High severity, CVSS 7.5. EPSS: 1.6% chance of exploitation in the next 30 days.

In FreeRDP before version 2.1.2, there is a use-after-free in gdi_SelectObject. All FreeRDP clients using compatibility mode with /relax-order-checks are affected. This is fixed in version 2.1.2.

Affected products

• Canonical Ubuntu Linux: version 18.04 only; version 20.04 only
• Debian Debian Linux: version 10.0 only
• Fedoraproject Fedora: version 31 only; version 32 only
• Freerdp Freerdp: before 2.1.2 (fixed in 2.1.2)
• Opensuse Leap: version 15.1 only

Published 2020-06-22. Last modified 2026-06-17.