USN-3380-1: FreeRDP vulnerabilities

Ubuntu Security Notice USN-3380-1

7th 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 version:

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