========================================================================= Ubuntu Security Notice USN-3845-1 December 12, 2018 freerdp, freerdp2 vulnerabilities ========================================================================= A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 18.10 - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS - Ubuntu 14.04 LTS Summary: Several security issues were fixed in FreeRDP. Software Description: - freerdp2: RDP client for Windows Terminal Services - freerdp: 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 LTS: 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 LTS: libfreerdp-client1.1 1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.3 Ubuntu 14.04 LTS: libfreerdp1 1.0.2-2ubuntu1.2 In general, a standard system update will make all the necessary changes. References: https://usn.ubuntu.com/usn/usn-3845-1 CVE-2018-8784, CVE-2018-8785, CVE-2018-8786, CVE-2018-8787, CVE-2018-8788, CVE-2018-8789 Package Information: https://launchpad.net/ubuntu/+source/freerdp2/2.0.0~git20180411.1.7a7b1802+dfsg1-2ubuntu0.1 https://launchpad.net/ubuntu/+source/freerdp2/2.0.0~git20170725.1.1648deb+dfsg1-7ubuntu0.1 https://launchpad.net/ubuntu/+source/freerdp/1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.3 https://launchpad.net/ubuntu/+source/freerdp/1.0.2-2ubuntu1.2