FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. This issue affects Clients only. Integer underflow leading to DOS (e.g. abort due to WINPR_ASSERT with default compilation flags). When an insufficient blockLen is provided, and proper length validation is not performed, an Integer Underflow occurs, leading to a Denial of Service (DOS) vulnerability. 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.
The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result.
| 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 | * |