Debian: DSA-4528-1: bird security update
Summary
Daniel McCarney discovered that the BIRD internet routing daemon
incorrectly validated RFC 8203 messages in it's BGP daemon, resulting
in a stack buffer overflow.
For the stable distribution (buster), this problem has been fixed in
version 1.6.6-1+deb10u1. In addition this update fixes an incomplete
revocation of privileges and a crash triggerable via the CLI (the latter
two bugs are also fixed in the oldstable distribution (stretch) which is
not affected by CVE-2019-16159).
We recommend that you upgrade your bird packages.
For the detailed security status of bird please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/source-package/bird
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/