CVE-2020-11044: Double Free in FreeRDP

Severity: low (CVSS 2.2 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: yes
Published: 2020-05-07 · updated 2026-06-17
Weakness: CWE-415

Description

In FreeRDP greater than 1.2 and before 2.0.0, a double free in update_read_cache_bitmap_v3_order crashes the client application if corrupted data from a manipulated server is parsed. This has been patched in 2.0.0.

Affected products

Canonical Ubuntu Linux: 18.04, 19.10, 20.04
Debian Linux: 10.0
FreeRDP: from 1.2.0 (excl.) before 2.0.0 — fixed in 2.0.0

How to fix

Upgrade to a fixed version: FreeRDP 2.0.0. Check the vendor advisory for mitigations.

References

https://github.com/FreeRDP/FreeRDP/commit/67c2aa52b2ae0341d469071d1bc8aab91f8d2ed8
https://github.com/FreeRDP/FreeRDP/issues/6013
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-cgqh-p732-6x2w
https://lists.debian.org/debian-lts-announce/2023/10/msg00008.html
https://usn.ubuntu.com/4379-1/
https://github.com/FreeRDP/FreeRDP/commit/67c2aa52b2ae0341d469071d1bc8aab91f8d2ed8
https://github.com/FreeRDP/FreeRDP/issues/6013
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-cgqh-p732-6x2w
https://lists.debian.org/debian-lts-announce/2023/10/msg00008.html
https://usn.ubuntu.com/4379-1/

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