ESB-2018.0949 - [Win][UNIX/Linux][Debian] mosquitto: Multiple vulnerabilities 2018-04-03

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

                               ESB-2018.0949
                         mosquitto security update
                               3 April 2018

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

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

Product:           mosquitto
Publisher:         Debian
Operating System:  Debian GNU/Linux 7
                   UNIX variants (UNIX, Linux, OSX)
                   Windows
Impact/Access:     Denial of Service -- Remote/Unauthenticated
                   Reduced Security  -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2017-7652 CVE-2017-7651 

Original Bulletin: 
   https://lists.debian.org/debian-lts-announce/2018/03/msg00037.html

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

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Package        : mosquitto
Version        : 0.15-2+deb7u3
CVE ID         : CVE-2017-7651 CVE-2017-7652


CVE-2017-7651
      A crafted CONNECT packet from an unauthenticated client could
      result in extraordinary memory consumption.

CVE-2017-7652
      In case all sockets/file descriptors are exhausted, a SIGHUP
      signal to reload the configuration could result in default
      config values (especially bad security settings)


For Debian 7 "Wheezy", these problems have been fixed in version
0.15-2+deb7u3.

We recommend that you upgrade your mosquitto packages.

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

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