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

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

                               ESB-2017.2016
                        Subversion vulnerabilities
                              14 August 2017

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

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

Product:           libsvn1
Publisher:         Ubuntu
Operating System:  Ubuntu
Impact/Access:     Unauthorised Access             -- Remote/Unauthenticated      
                   Execute Arbitrary Code/Commands -- Remote with User Interaction
                   Denial of Service               -- Existing Account            
Resolution:        Patch/Upgrade
CVE Names:         CVE-2017-9800 CVE-2016-8734 CVE-2016-2167

Reference:         ESB-2017.1985
                   ESB-2016.2825
                   ESB-2016.1051
                   ESB-2016.1050

Original Bulletin: 
   http://www.ubuntu.com/usn/usn-3388-1

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

==========================================================================
Ubuntu Security Notice USN-3388-1
August 11, 2017

subversion 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 Subversion.

Software Description:
- - subversion: Advanced version control system

Details:

Joern Schneeweisz discovered that Subversion did not properly handle
host names in 'svn+ssh://' URLs. A remote attacker could use this
to construct a subversion repository that when accessed could run
arbitrary code with the privileges of the user. (CVE-2017-9800)

Daniel Shahaf and James McCoy discovered that Subversion did not
properly verify realms when using Cyrus SASL authentication. A
remote attacker could use this to possibly bypass intended access
restrictions. This issue only affected Ubuntu 14.04 LTS and Ubuntu
16.04 LTS. (CVE-2016-2167)

Florian Weimer discovered that Subversion clients did not properly
restrict XML entity expansion when accessing http(s):// URLs. A remote
attacker could use this to cause a denial of service. This issue only
affected Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2016-8734)

Update instructions:

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

Ubuntu 17.04:
  libsvn1                         1.9.5-1ubuntu1.1
  subversion                      1.9.5-1ubuntu1.1

Ubuntu 16.04 LTS:
  libapache2-mod-svn              1.9.3-2ubuntu1.1
  libapache2-svn                  1.9.3-2ubuntu1.1
  libsvn1                         1.9.3-2ubuntu1.1
  subversion                      1.9.3-2ubuntu1.1

Ubuntu 14.04 LTS:
  libapache2-mod-svn              1.8.8-1ubuntu3.3
  libapache2-svn                  1.8.8-1ubuntu3.3
  libsvn1                         1.8.8-1ubuntu3.3
  subversion                      1.8.8-1ubuntu3.3

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

References:
  https://www.ubuntu.com/usn/usn-3388-1
  CVE-2016-2167, CVE-2016-8734, CVE-2017-9800

Package Information:
  https://launchpad.net/ubuntu/+source/subversion/1.9.5-1ubuntu1.1
  https://launchpad.net/ubuntu/+source/subversion/1.9.3-2ubuntu1.1
  https://launchpad.net/ubuntu/+source/subversion/1.8.8-1ubuntu3.3

- --------------------------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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=Nue+
-----END PGP SIGNATURE-----