USN-3845-1: FreeRDP vulnerabilities
12 December 2018
Several security issues were fixed in FreeRDP.
Releases
Packages
- freerdp - RDP client for Windows Terminal Services
- freerdp2 - RDP client for Windows Terminal Services
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
-
libfreerdp-client2-2
-
2.0.0~git20180411.1.7a7b1802+dfsg1-2ubuntu0.1
-
libfreerdp2-2
-
2.0.0~git20180411.1.7a7b1802+dfsg1-2ubuntu0.1
Ubuntu 18.04
-
libfreerdp-client2-2
-
2.0.0~git20170725.1.1648deb+dfsg1-7ubuntu0.1
-
libfreerdp2-2
-
2.0.0~git20170725.1.1648deb+dfsg1-7ubuntu0.1
Ubuntu 16.04
Ubuntu 14.04
In general, a standard system update will make all the necessary changes.