USN-3845-2: FreeRDP vulnerabilities

28 May 2019

Several security issues were fixed in FreeRDP.

Releases

Packages

  • freerdp - RDP client for Windows Terminal Services

Details

USN-3845-1 fixed several vulnerabilities in FreeRDP. This update provides the
corresponding update for Ubuntu 18.04 LTS and Ubuntu 18.10.

Original advisory details:

Eyal Itkin discovered FreeRDP incorrectly handled certain stream encodings. A
malicious server could use this issue to cause FreeRDP to crash, resulting in a
denial of service, or possibly execute arbitrary code. This issue only applies
to Ubuntu 18.04 LTS and Ubuntu 18.10. (CVE-2018-8784, CVE-2018-8785)

Eyal Itkin discovered FreeRDP incorrectly handled bitmaps. A malicious server
could use this issue to cause FreeRDP to crash, resulting in a denial of
service, or possibly execute arbitrary code. (CVE-2018-8786, CVE-2018-8787)

Eyal Itkin discovered FreeRDP incorrectly handled certain stream encodings. A
malicious server could use this issue to cause FreeRDP to crash, resulting in a
denial of service, or possibly execute arbitrary code. This issue only applies
to Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 18.10. (CVE-2018-8788)

Eyal Itkin discovered FreeRDP incorrectly handled NTLM authentication. A
malicious server could use this issue to cause FreeRDP to crash, resulting in a
denial of service, or possibly execute arbitrary code. This issue only applies
to Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 18.10. (CVE-2018-8789)

Update instructions

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

Ubuntu 18.10
Ubuntu 18.04

In general, a standard system update will make all the necessary changes.

Related notices

  • USN-3845-1: freerdp2, freerdp, libfreerdp2-2, libfreerdp-client2-2, libfreerdp1, libfreerdp-client1.1