CVE-2020-11017: Double free in cliprdr_server_receive_capabilities in FreeRDP

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-05-29 · updated 2026-06-17
Weakness: CWE-415

Description

In FreeRDP less than or equal to 2.0.0, by providing manipulated input a malicious client can create a double free condition and crash the server. This is fixed in version 2.1.0.

Affected products

Debian Linux: 10.0
FreeRDP: before 2.1.0 — fixed in 2.1.0
openSUSE Leap: 15.1

How to fix

Upgrade to a fixed version: FreeRDP 2.1.0. Check the vendor advisory for mitigations.

References

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00080.html
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-q5c8-fm29-q57c
https://lists.debian.org/debian-lts-announce/2023/10/msg00008.html
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00080.html
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-q5c8-fm29-q57c
https://lists.debian.org/debian-lts-announce/2023/10/msg00008.html

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