1. Ubuntu Security Notices
  2. USN-5734-1

USN-5734-1: FreeRDP vulnerabilities

Publication date

22 November 2022

Overview

Several security issues were fixed in FreeRDP.

Releases

Packages

  • freerdp2 - RDP client for Windows Terminal Services

Details

It was discovered that FreeRDP incorrectly handled certain data lenghts. A
malicious server could use this issue to cause FreeRDP clients to crash,
resulting in a denial of service, or possibly obtain sensitive information.
This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, and Ubuntu
22.04 LTS. (CVE-2022-39282, CVE-2022-39283)

It was discovered that FreeRDP incorrectly handled certain data lenghts. A
malicious server could use this issue to cause FreeRDP clients to crash,
resulting in a denial of service, or possibly obtain sensitive information.
(CVE-2022-39316, CVE-2022-39317, CVE-2022-39318, CVE-2022-39319,
CVE-2022-39320)

It was discovered that...

It was discovered that FreeRDP incorrectly handled certain data lenghts. A
malicious server could use this issue to cause FreeRDP clients to crash,
resulting in a denial of service, or possibly obtain sensitive information.
This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, and Ubuntu
22.04 LTS. (CVE-2022-39282, CVE-2022-39283)

It was discovered that FreeRDP incorrectly handled certain data lenghts. A
malicious server could use this issue to cause FreeRDP clients to crash,
resulting in a denial of service, or possibly obtain sensitive information.
(CVE-2022-39316, CVE-2022-39317, CVE-2022-39318, CVE-2022-39319,
CVE-2022-39320)

It was discovered that FreeRDP incorrectly handled certain path checks. A
malicious server could use this issue to cause FreeRDP clients to read
files outside of the shared directory. (CVE-2022-39347)

Update instructions

After a standard system update you need to reboot your computer to make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
22.10 kinetic libfreerdp-server2-2 –  2.8.1+dfsg1-0ubuntu1.1
libfreerdp-client2-2 –  2.8.1+dfsg1-0ubuntu1.1
22.04 jammy libfreerdp-server2-2 –  2.6.1+dfsg1-3ubuntu2.3
libfreerdp-client2-2 –  2.6.1+dfsg1-3ubuntu2.3
20.04 focal libfreerdp-server2-2 –  2.2.0+dfsg1-0ubuntu0.20.04.4
libfreerdp-client2-2 –  2.2.0+dfsg1-0ubuntu0.20.04.4
18.04 bionic libfreerdp-server2-2 –  2.2.0+dfsg1-0ubuntu0.18.04.4
libfreerdp-client2-2 –  2.2.0+dfsg1-0ubuntu0.18.04.4

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References

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