A FreeRDP security update has been released for Ubuntu Linux 20.04 LTS and 18.04 LTS.

USN-4481-1: FreeRDP vulnerabilities

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Ubuntu Security Notice USN-4481-1
September 01, 2020

freerdp2 vulnerabilities
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A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS

Summary:

Several security issues were fixed in FreeRDP.

Software Description:
- freerdp2: RDP client for Windows Terminal Services

Details:

It was discovered that FreeRDP incorrectly handled certain memory
operations. A remote attacker could use this issue to cause FreeRDP to
crash, resulting in a denial of service, or possibly execute arbitrary
code.

Update instructions:

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

Ubuntu 20.04 LTS:
libfreerdp-client2-2 2.2.0+dfsg1-0ubuntu0.20.04.1
libfreerdp-server2-2 2.2.0+dfsg1-0ubuntu0.20.04.1
libfreerdp2-2 2.2.0+dfsg1-0ubuntu0.20.04.1

Ubuntu 18.04 LTS:
libfreerdp-client2-2 2.2.0+dfsg1-0ubuntu0.18.04.1
libfreerdp-server2-2 2.2.0+dfsg1-0ubuntu0.18.04.1
libfreerdp2-2 2.2.0+dfsg1-0ubuntu0.18.04.1

This update uses a new upstream release, which includes additional bug
fixes. In general, a standard system update will make all the necessary
changes.

References:
  https://usn.ubuntu.com/4481-1
CVE-2020-11095, CVE-2020-11096, CVE-2020-11097, CVE-2020-11098,
CVE-2020-11099, CVE-2020-15103, CVE-2020-4030, CVE-2020-4031,
CVE-2020-4032, CVE-2020-4033

Package Information:
  https://launchpad.net/ubuntu/+source/freerdp2/2.2.0+dfsg1-0ubuntu0.20.04.1
  https://launchpad.net/ubuntu/+source/freerdp2/2.2.0+dfsg1-0ubuntu0.18.04.1