A libxdmcp security update has been released for Debian GNU/Linux 7 Extended LTS

ELA-193-1 libxdmcp security update

Package libxdmcp
Version 1:1.1.1-1+deb7u1
Related CVE CVE-2017-2625

It has been found, that libxdmcp, an X11 Display Manager Control Protocol library, uses weak entropy to generate keys. Using arc4random_buf() from libbsd should avoid this flaw.

For Debian 7 Wheezy, these problems have been fixed in version 1:1.1.1-1+deb7u1.

We recommend that you upgrade your libxdmcp packages.

Further information about Extended LTS security advisories can be found at: https://deb.freexian.com/extended-lts/