Security fix in Ruby on Rails

Several vulnerabilities have been discovered in the interpreter for the Ruby language. The Common Vulnerabilities and Exposures project identifies the following problems:

CVE-2018-16395    

Tyler Eckstein reported that the equality check of    OpenSSL::X509::Name could return true for non-equal objects. If a    malicious X.509 certificate is passed to compare with an existing    certificate, there is a possibility to be judged incorrectly that    they are equal.

CVE-2018-16396    

Chris Seaton discovered that tainted flags are not propagated in    Array#pack and String#unpack with some directives.

For the stable distribution (stretch), these problems have been fixed inversion 2.3.3-1+deb9u4.

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:https://security-tracker.debian.org/tracker/ruby2.3

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/