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DSA-4312 tinc - security update

Several vulnerabilities were discovered in tinc, a Virtual PrivateNetwork (VPN) daemon. The Common Vulnerabilities and Exposures projectidentifies the following problems:

CVE-2018-16738 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 the stable distribution (stretch), these problems have been fixed inversion 1.0.31-1+deb9u1.

We recommend that you upgrade your tinc packages.

For the detailed security status of tinc please refer to its securitytracker page at:

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