It was discovered that FreeRDP incorrectly handled certain memory operations. A remote attacker could use this issue to cause FreeRDP to crash, resulting in a denial of service, or possibly exeucte arbitrary code.
The freerdp package has been updated to version 2.1.2 to fix these issues.
Also, the remmina package has been updated to version 1.4.7 for compatibility with the updated freerdp.