Debian 9: DLA-2561-1 Critical Command Injection in Ruby Mechanize

Affected versions of Mechanize allow for OS commands to be
injected using several classes' methods which implicitly use
Ruby's Kernel#open method.

For Debian 9 stretch, this problem has been fixed in version
2.7.5-1+deb9u1.

We recommend that you upgrade your ruby-mechanize packages.

For the detailed security status of ruby-mechanize please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/source-package/ruby-mechanize

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS