ESB-2017.1953 - [Ubuntu] libfreerdp-client1.1: Multiple vulnerabilities 2017-08-08

Printable version
PGP/GPG verifiable version

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2017.1953
                          FreeRDP vulnerabilities
                               8 August 2017

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           libfreerdp-client1.1
Publisher:         Ubuntu
Operating System:  Ubuntu
Impact/Access:     Denial of Service               -- Remote with User Interaction
                   Execute Arbitrary Code/Commands -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2017-2839 CVE-2017-2838 CVE-2017-2837
                   CVE-2017-2836 CVE-2017-2835 CVE-2017-2834
                   CVE-2014-0791 CVE-2014-0250 

Reference:         ESB-2017.1905

Original Bulletin: 
   http://www.ubuntu.com/usn/usn-3380-1

- --------------------------BEGIN INCLUDED TEXT--------------------

==========================================================================
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

- --------------------------END INCLUDED TEXT--------------------

You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.

NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members.  As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.

NOTE: This is only the original release of the security bulletin.  It may
not be updated when updates to the original are made.  If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.

Contact information for the authors of the original document is included
in the Security Bulletin above.  If you have any questions or need further
information, please contact them directly.

Previous advisories and external security bulletins can be retrieved from:

        http://www.auscert.org.au/render.html?cid=1980

===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
                AusCERT personnel answer during Queensland business hours
                which are GMT+10:00 (AEST).
                On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967
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=kjec
-----END PGP SIGNATURE-----

« Back to bulletins