CVE-2021-41159
Improper client input validation for FreeRDP gateway connections allows to overwrite memory
- State
- Published
- Severity
- 5.8 Medium
- Published
- Oct 21, 2021
- Updated
- Aug 4, 2024
- Reserved
- Sep 15, 2021
Description
FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. All FreeRDP clients prior to version 2.4.1 using gateway connections (`/gt:rpc`) fail to validate input data. A malicious gateway might allow client memory to be written out of bounds. This issue has been resolved in version 2.4.1. If you are unable to update then use `/gt:http` rather than /gt:rdp connections if possible or use a direct connection without a gateway.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 5.8 Medium | CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:N/I:H/A:N | GitHub_M |
Weaknesses
- CWE-787 Out-of-bounds Write
Affected Products
| Product | Versions |
|---|---|
FreeRDPFreeRDP |
|
References
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-vh34-m9h7-95xq
- FEDORA-2021-2c25f03d0bvendor-advisory
- GLSA-202210-24vendor-advisory
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