ESB-2018.2707 - [UNIX/Linux][Debian] mgetty: Execute arbitrary code/commands - Existing account 2018-09-12

Printable version
PGP/GPG verifiable version

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

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

                               ESB-2018.2707
                          mgetty security update
                             12 September 2018

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

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

Product:           mgetty
Publisher:         Debian
Operating System:  Debian GNU/Linux 9
                   UNIX variants (UNIX, Linux, OSX)
Impact/Access:     Execute Arbitrary Code/Commands -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-16741  

Original Bulletin: 
   http://www.debian.org/security/2018/dsa-4291

Comment: This advisory references vulnerabilities in products which run on 
         platforms other than Debian. It is recommended that administrators 
         running mgetty check for an updated version of the software for 
         their operating system.

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

- - -------------------------------------------------------------------------
Debian Security Advisory DSA-4291-1                   security@debian.org
https://www.debian.org/security/                        Yves-Alexis Perez
September 11, 2018                    https://www.debian.org/security/faq
- - -------------------------------------------------------------------------

Package        : mgetty
CVE ID         : CVE-2018-16741

Two input sanitization failures have been found in the faxrunq and faxq
binaries in mgetty, a smart modem getty replacement. An attacker could leverage
them  to insert commands via shell metacharacters in jobs id and have them
executed with the privilege of the faxrunq/faxq user.

For the stable distribution (stretch), this problem has been fixed in
version 1.1.36-3+deb9u1.

We recommend that you upgrade your mgetty packages.

For the detailed security status of mgetty please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/mgetty

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: debian-security-announce@lists.debian.org

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

        https://www.auscert.org.au/bulletins/

===========================================================================
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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=DN1s
-----END PGP SIGNATURE-----

« Back to bulletins