In FreeRDP before version 2.1.2, there is an integer casting vulnerability in update_recv_secondary_order. All clients with +glyph-cache /relax-order-checks are affected. This is fixed in version 2.1.2.
https://usn.ubuntu.com/4481-1/
https://lists.debian.org/debian-lts-announce/2023/10/msg00008.html
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-3898-mc89-x2vc
https://github.com/FreeRDP/FreeRDP/commit/e7bffa64ef5ed70bac94f823e2b95262642f5296
http://www.freerdp.com/2020/06/22/2_1_2-released
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00080.html