[USN-3380-1] FreeRDP vulnerabilities

[Marc Deslauriers]

==========================================================================
Ubuntu Security Notice USN-3380-1
August 07, 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

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

References:
  https://www.ubuntu.com/usn/usn-3380-1
  CVE-2014-0250, CVE-2014-0791, CVE-2017-2834, CVE-2017-2835,
  CVE-2017-2836, CVE-2017-2837, CVE-2017-2838, CVE-2017-2839

Package Information:

https://launchpad.net/ubuntu/+source/freerdp/1.1.0~git20140921.1.440916e+dfsg1-10ubuntu1.1

https://launchpad.net/ubuntu/+source/freerdp/1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.2
  https://launchpad.net/ubuntu/+source/freerdp/1.0.2-2ubuntu1.1


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