A FreeRDP security update has been released for Ubuntu Linux 18.04 LTS, 20.04 LTS, 21.10, and 22.04 LTS.
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Ubuntu Security Notice USN-5461-1
June 06, 2022
freerdp2 vulnerabilities
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 22.04 LTS
- Ubuntu 21.10
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
Summary:
FreeRDP could allow unintended access to network services.
Software Description:
- freerdp2: RDP client for Windows Terminal Services
Details:
It was discovered that FreeRDP incorrectly handled empty password values. A
remote attacker could use this issue to bypass server authentication. This
issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, and Ubuntu 21.10.
(CVE-2022-24882)
It was discovered that FreeRDP incorrectly handled server configurations
with an invalid SAM file path. A remote attacker could use this issue to
bypass server authentication. (CVE-2022-24883)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 22.04 LTS:
libfreerdp-client2-2 2.6.1+dfsg1-3ubuntu2.1
libfreerdp-server2-2 2.6.1+dfsg1-3ubuntu2.1
Ubuntu 21.10:
libfreerdp-client2-2 2.3.0+dfsg1-2ubuntu0.2
libfreerdp-server2-2 2.3.0+dfsg1-2ubuntu0.2
Ubuntu 20.04 LTS:
libfreerdp-client2-2 2.2.0+dfsg1-0ubuntu0.20.04.3
libfreerdp-server2-2 2.2.0+dfsg1-0ubuntu0.20.04.3
Ubuntu 18.04 LTS:
libfreerdp-client2-2 2.2.0+dfsg1-0ubuntu0.18.04.3
libfreerdp-server2-2 2.2.0+dfsg1-0ubuntu0.18.04.3
After a standard system update you need to reboot your computer to make all
the necessary changes.
References:
https://ubuntu.com/security/notices/USN-5461-1
CVE-2022-24882, CVE-2022-24883
Package Information:
https://launchpad.net/ubuntu/+source/freerdp2/2.6.1+dfsg1-3ubuntu2.1
https://launchpad.net/ubuntu/+source/freerdp2/2.3.0+dfsg1-2ubuntu0.2
https://launchpad.net/ubuntu/+source/freerdp2/2.2.0+dfsg1-0ubuntu0.20.04.3
https://launchpad.net/ubuntu/+source/freerdp2/2.2.0+dfsg1-0ubuntu0.18.04.3
