Debian Security Advisory

DSA-4312-1 tinc -- security update

Date Reported:
08 Oct 2018
Affected Packages:
Security database references:
In Mitre's CVE dictionary: CVE-2018-16738, CVE-2018-16758.
More information:

Several vulnerabilities were discovered in tinc, a Virtual Private Network (VPN) daemon. The Common Vulnerabilities and Exposures project identifies 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 in version 1.0.31-1+deb9u1.

We recommend that you upgrade your tinc packages.

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