Debian: DSA-3636-1 Critical Heap Overflow Risk In Collectd Daemon

Additionally, security researchers at Columbia University and the
University of Virginia discovered that collectd failed to verify a
return value during initialization. This meant the daemon could
sometimes be started without the desired, secure settings.

For the stable distribution (jessie), this problem has been fixed in
version 5.4.1-6+deb8u1.

For the testing (stretch) and unstable (sid) distributions, this
problem has been fixed in version 5.5.2-1.

We recommend that you upgrade your collectd packages.

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/