---
title: "CVE-2020-11047\n    | Ubuntu"
description: Ubuntu is an open source software operating system that runs from the
  desktop, to the cloud, to all your internet connected things.
url: https://ubuntu.com/security/CVE-2020-11047?format=md
keywords: index, follow
---

# CVE-2020-11047

Publication date 7 May 2020

Last updated 25 August 2025

---

Ubuntu priority

**Low**

[Why this priority?](https://ubuntu.com/security/cves/about#priority )

## Cvss 3 Severity Score

**5.9 · Medium**

[Score breakdown](https://ubuntu.com/security/CVE-2020-11047?format=md#impact-score)

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## Description

In FreeRDP after 1.1 and before 2.0.0, there is an out-of-bounds read in
autodetect\_recv\_bandwidth\_measure\_results. A malicious server can extract
up to 8 bytes of client memory with a manipulated message by providing a
short input and reading the measurement result data. This has been patched
in 2.0.0.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| freerdp | 20.04 LTS focal | Not in release |
| 19.10 eoan | Not in release |
| 18.04 LTS bionic | Not affected |
| 16.04 LTS xenial | Not affected |
| 14.04 LTS trusty | Not in release |
| freerdp2 | 20.04 LTS focal | Fixed 2.1.1+dfsg1-0ubuntu0.20.04.1 |
| 19.10 eoan | Fixed 2.1.1+dfsg1-0ubuntu0.19.10.1 |
| 18.04 LTS bionic | Fixed 2.1.1+dfsg1-0ubuntu0.18.04.1 |
| 16.04 LTS xenial | Not in release |
| 14.04 LTS trusty | Not in release |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)
* [Patch details](https://ubuntu.com/security/CVE-2020-11047?format=md#patch-details)

### Patch details

For informational purposes only. We recommend not to cherry-pick updates. [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)

| Package | Patch details |
| --- | --- |
| freerdp2 | * Upstream:   [f5e73cc](https://github.com/FreeRDP/FreeRDP/commit/f5e73cc7c9cd973b516a618da877c87b80950b65) |

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

5.9 · Medium

* Base metrics

  | Parameter | Value |
  | --- | --- |
  | Attack vector | Network |
  | Attack complexity | High |
  | Privileges required | High |
  | User interaction | None |
  | Scope | Unchanged |
  | Confidentiality impact | High |
  | Integrity impact | None |
  | Availability impact | High |
* Scores

  | Parameter | Value |
  | --- | --- |
  | Base score | 5.9 · Medium |
  | Exploitability score | - |
  | Impact score | - |

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

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11047)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2020-11047)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2020-11047)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2020-11047)

### Related Ubuntu Security Notices (USN)

+ [USN-4379-1](https://usn.ubuntu.com/USN-4379-1)
+ FreeRDP vulnerabilities
+ 1 June 2020

### Other references

* <https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-9fw6-m2q8-h5pw>
* <https://www.cve.org/CVERecord?id=CVE-2020-11047>