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             AUSCERT External Security Bulletin Redistribution

                               ESB-2020.1843
                    unbound -- mutliple vulnerabilities
                                25 May 2020

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

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

Product:           unbound
Publisher:         FreeBSD
Operating System:  FreeBSD
                   UNIX variants (UNIX, Linux, OSX)
                   Windows
Impact/Access:     Denial of Service -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2020-12663 CVE-2020-12662 

Original Bulletin: 
   http://www.vuxml.org/freebsd/a2cb7c31-9c79-11ea-a9c2-d05099c0ae8c.html

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

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unbound -- mutliple vulnerabilities

Affected packages
  unbound < 1.10.1

Details

VuXML ID  a2cb7c31-9c79-11ea-a9c2-d05099c0ae8c
Discovery 2020-05-19
Entry     2020-05-22

NLNetLabs reports:

    This release fixes CVE-2020-12662 and CVE-2020-12663.

    Bug Fixes:

      + CVE-2020-12662 Unbound can be tricked into amplifying an incoming query
        into a large number of queries directed to a target.
      + CVE-2020-12663 Malformed answers from upstream name servers can be used
        to make Unbound unresponsive.
    [source]

References

CVE Name CVE-2020-12662
CVE Name CVE-2020-12663
URL      https://lists.nlnetlabs.nl/pipermail/unbound-users/2020-May/
         006833.html

- -------------------------------------------------------------------------------

Copyright 2003-2005 Jacques Vidrine and contributors.
Please see the source of this document for full copyright information.

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

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