Debian: DSA-4433-1 Moderate: Ruby 2.3 Denial Of Service Risk

Several vulnerabilities have been discovered in the Rubygems included in
the interpreter for the Ruby language, which may result in denial of
service or the execution of arbitrary code.

For the stable distribution (stretch), these problems have been fixed in
version 2.3.3-1+deb9u6.

We recommend that you upgrade your ruby2.3 packages.

For the detailed security status of ruby2.3 please refer to
its security tracker page at:

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/