Hash: SHA256

             AUSCERT External Security Bulletin Redistribution

         asterisk -- Unauthorized data disclosure and shell access
                      command injection in app_minivm
                             4 September 2017


        AusCERT Security Bulletin Summary

Product:           asterisk
Publisher:         FreeBSD
Operating System:  FreeBSD
                   UNIX variants (UNIX, Linux, OSX)
Impact/Access:     Execute Arbitrary Code/Commands -- Remote/Unauthenticated
                   Denial of Service               -- Remote/Unauthenticated
                   Access Confidential Data        -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2017-14100 CVE-2017-14099 CVE-2017-14098

Original Bulletin: 

Comment: This bulletin contains two (2) FreeBSD security advisories.
         This advisory references vulnerabilities in products which run on 
         platforms other than FreeBSD. It is recommended that administrators
         running asterisk check for an updated version of the software for 
         their operating system.

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

asterisk -- Unauthorized data disclosure and shell access command injection in

Affected packages

asterisk11 < 11.25.2

asterisk13 < 13.17.1


VuXML ID c599f95c-8ee5-11e7-8be8-001999f8d30b

Discovery 2017-08-31

Entry 2017-09-01

The Asterisk project reports:

AST-2017-005 - A change was made to the strict RTP support in the RTP stack to
better tolerate late media when a reinvite occurs. When combined with the 
symmetric RTP support this introduced an avenue where media could be hijacked.
Instead of only learning a new address when expected the new code allowed a 
new source address to be learned at all times.

AST-2017-006 - The app_minivm module has an "externnotify" program 
configuration option that is executed by the MinivmNotify dialplan 
application. The application uses the caller-id name and number as part of a 
built string passed to the OS shell for interpretation and execution. Since 
the caller-id name and number can come from an untrusted source, a crafted 
caller-id name or number allows an arbitrary shell command injection.


CVE Name CVE-2017-14099

CVE Name CVE-2017-14100

URL https://downloads.asterisk.org/pub/security/AST-2017-005.html

URL https://downloads.asterisk.org/pub/security/AST-2017-006.html


asterisk -- Remote Crash Vulerability in res_pjsip

Affected packages
asterisk13	<	13.17.1

VuXML ID	ec1df2a1-8ee6-11e7-8be8-001999f8d30b
Discovery	2017-08-31
Entry	2017-09-01
The Asterisk project reports:

A carefully crafted URI in a From, To or Contact header could cause Asterisk 
to crash.


CVE Name	CVE-2017-14098
URL	https://downloads.asterisk.org/pub/security/AST-2017-007.html

- --------------------------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:


Australian Computer Emergency Response Team
The University of Queensland
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.
Comment: http://www.auscert.org.au/render.html?it=1967