Advisories for Gem/Bundler package

Bundler 1.x might allow remote attackers to inject arbitrary Ruby code into an application by leveraging a gem name collision on a secondary source. NOTE: this might overlap CVE-2013-0334.

Bundler is a package for managing application dependencies in Ruby. In bundler when working with untrusted and apparently harmless Gemfile's, it is not expected that they lead to execution of external code, unless that's explicit in the ruby code inside the Gemfile itself. However, if the Gemfile includes gem entries that use the git option with invalid, but seemingly harmless, values with a leading dash, this can be false. To …

Bundler sometimes chooses a dependency source based on the highest gem version number, which means that a rogue gem found at a public source may be chosen, even if the intended choice was a private gem that is a dependency of another private gem that is explicitly depended on by the application.

Bundler uses a predictable path in /tmp/, created with insecure permissions as a storage location for gems, if locations under the user's home directory are not available. If Bundler is used in a scenario where the user does not have a writable home directory, an attacker could place malicious code in this directory that would be later loaded and executed.

Any Gemfile with multiple top-level source lines cannot reliably control the gem server that a particular gem is fetched from. As a result, Bundler might install the wrong gem if more than one source provides a gem with the same name. This is especially possible in the case of Github's legacy gem server, hosted at gems.github.com. An attacker might create a malicious gem on Rubygems.org with the same name as …

This package contains a flaw that is triggered during the redirection to other hosts. This may allow a remote attacker to gain access to HTTP basic authentication credential information.

This package contains a flaw that is due to the program listing credential information in plaintext in the install-command process listing. This may allow a local attacker to gain access to credential information.