Home/CVE/FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. All FreeRDP cl
CVE

CVE-2021-41159

FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. All FreeRDP cl

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.

MEDIUM · CVSS 5.8 EPSS 0.00459
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  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-787Out-of-bounds Write
CWE-787Out-of-bounds Write
▤

Affected Products & Versions

2
freerdp< 2.4.1
fedoraproject fedoraall versions
▣

Scoring & Timeline

5.8
MEDIUM · CVSS v3.1 · security-advisories@github.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD21 Oct 2021 · 07:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:N/I:H/A:N
⚑

Vendor Advisories

10
suse-csafopenSUSE-SU-2024:11591-1
suse-csafSUSE-SU-2022:2993-1
suse-csafSUSE-SU-2022:2890-1
suse-csafSUSE-SU-2022:2891-1
usnUSN-5154-1
🔗

References & Sources

3
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-vh34-m9h7-95xqThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DWJXQOWKNR7O5HM2HFJOM4GBUFPTE3RG/
https://security.gentoo.org/glsa/202210-24Third Party Advisory
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