tinc: Multiple vulnerabilities

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.3038
                           tinc security update
                              9 October 2018

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

Product:           tinc
Publisher:         Debian
Operating System:  Debian GNU/Linux 8
Impact/Access:     Access Privileged Data -- Remote with User Interaction
                   Unauthorised Access    -- Remote/Unauthenticated      
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-16758 CVE-2018-16737 

Reference:         ESB-2018.3037

Original Bulletin: 
   https://security-tracker.debian.org/tracker/DLA-1538-1

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Package        : tinc
Version        : 1.0.24-2+deb8u1
CVE ID         : CVE-2018-16737 CVE-2018-16758

Several vulnerabilities were discovered in tinc, a Virtual Private
Network (VPN) daemon. The Common Vulnerabilities and Exposures project
identifies the following problems:

CVE-2018-16737

    Michael Yonli discovered a flaw in the implementation of the
    authentication protocol that could allow a remote attacker to
    establish an authenticated, one-way connection with another node.

CVE-2018-16758

    Michael Yonli discovered that a man-in-the-middle that has
    intercepted a TCP connection might be able to disable encryption of
    UDP packets sent by a node.

For Debian 8 "Jessie", these problems have been fixed in version
1.0.24-2+deb8u1.

We recommend that you upgrade your tinc 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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