CVE-2021-41159

high

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.

References

https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-vh34-m9h7-95xq

https://lists.fedoraproject.org/archives/list/[email protected]/message/DWJXQOWKNR7O5HM2HFJOM4GBUFPTE3RG/

https://security.gentoo.org/glsa/202210-24

Details

Source: MITRE

Published: 2021-10-21

Updated: 2022-11-04

Type: CWE-787

Risk Information

CVSS v2

Base Score: 6.8

Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P

Impact Score: 6.4

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3

Base Score: 8.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Impact Score: 5.9

Exploitability Score: 2.8

Severity: HIGH