CVE-2020-4031: Use-After-Free in gdi_SelectObject in FreeRDP
In FreeRDP before version 2.1.2, there is a use-after-free in gdiSelectObject. All FreeRDP clients using compatibility mode with /relax-order-checks are affected. This is fixed in version 2.1.2.
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the vulnerability ID for this issue?
The vulnerability ID for this issue is CVE-2020-4031.
What is the severity of CVE-2020-4031?
The severity of CVE-2020-4031 is high with a CVSS score of 7.5.
Which software versions are affected by CVE-2020-4031?
All FreeRDP clients using compatibility mode with /relax-order-checks prior to version 2.1.2 are affected by CVE-2020-4031.
How can I fix CVE-2020-4031?
To fix CVE-2020-4031, update your FreeRDP client to version 2.1.2 or higher.
Where can I find more information about CVE-2020-4031?
You can find more information about CVE-2020-4031 at the following references: [MITRE CVE-2020-4031](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-4031), [GitHub Security Advisory](https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-gwcq-hpq2-m74g), [FreeRDP Release Announcement](http://www.freerdp.com/2020/06/22/2_1_2-released).