freerdp vulnerabilities

7 August 2017

freerdp vulnerabilities

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

• Ubuntu 17.04
• Ubuntu 16.04 LTS
• Ubuntu 14.04 LTS

Summary

Several security issues were fixed in FreeRDP.

Software Description

• freerdp - RDP client for Windows Terminal Services

Details

It was discovered that FreeRDP incorrectly handled certain width and height values. 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 applied to Ubuntu 14.04 LTS. (CVE-2014-0250)

It was discovered that FreeRDP incorrectly handled certain values in a Scope List. A malicious server could use this issue to cause FreeRDP to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2014-0791)

Tyler Bohan discovered that FreeRDP incorrectly handled certain length values. A malicious server could use this issue to cause FreeRDP to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2017-2834, CVE-2017-2835)

Tyler Bohan discovered that FreeRDP incorrectly handled certain packets. A malicious server could possibly use this issue to cause FreeRDP to crash, resulting in a denial of service. (CVE-2017-2836, CVE-2017-2837, CVE-2017-2838, CVE-2017-2839)

Update instructions

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

Ubuntu 17.04

libfreerdp-client1.1 - 1.1.0~git20140921.1.440916e+dfsg1-10ubuntu1.1

Ubuntu 16.04 LTS

libfreerdp-client1.1 - 1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.2

Ubuntu 14.04 LTS

libfreerdp1 - 1.0.2-2ubuntu1.1

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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

References

• CVE-2014-0250
• CVE-2014-0791
• CVE-2017-2834
• CVE-2017-2835
• CVE-2017-2836
• CVE-2017-2837
• CVE-2017-2838
• CVE-2017-2839