FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. Affected versions of FreeRDP are subject to a Null Pointer Dereference leading a crash in the RemoteFX (rfx) handling. Inside the rfx_process_message_tileset function, the program allocates tiles using rfx_allocate_tiles for the number of numTiles. If the initialization process of tiles is not completed for various reasons, tiles will have a NULL pointer. Which may be accessed in further processing and would cause a program crash. This issue has been addressed in versions 2.11.0 and 3.0.0-beta3. Users are advised to upgrade. There are no known workarounds for this vulnerability.
A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Freerdp | Freerdp | * | 2.11.0 (excluding) |
| Freerdp | Freerdp | 3.0.0-beta1 (including) | 3.0.0-beta1 (including) |
| Freerdp | Freerdp | 3.0.0-beta2 (including) | 3.0.0-beta2 (including) |
| Red Hat Enterprise Linux 9 | RedHat | freerdp-2:2.11.2-1.el9 | * |
| Freerdp2 | Ubuntu | bionic | * |
| Freerdp2 | Ubuntu | devel | * |
| Freerdp2 | Ubuntu | esm-infra/bionic | * |
| Freerdp2 | Ubuntu | focal | * |
| Freerdp2 | Ubuntu | jammy | * |
| Freerdp2 | Ubuntu | lunar | * |
| Freerdp2 | Ubuntu | mantic | * |
| Freerdp2 | Ubuntu | trusty | * |
| Freerdp2 | Ubuntu | upstream | * |
| Freerdp2 | Ubuntu | xenial | * |