CVE-2021-41159 MEDIUM

CVE-2021-41159: Improper client input validation for FreeRDP gateway connections allows to overwrite memory

Vendor Freerdp
Product FreeRDP
Weakness CWE-787
Published October 21, 2021
Last update August 4, 2024
View on NVD All CVEs

CVSS base score

5.8/10
Attack vector Network
Attack complexity High
Privileges required High
User interaction None
Confidentiality None
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:N/I:H/A:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

October 21, 2021 CVE published
August 4, 2024 Record updated