Debian DLA-1480-1 : ruby2.1 security update
High Nessus Plugin ID 112167
SynopsisThe remote Debian host is missing a security update.
DescriptionSeveral vulnerabilities were discovered in Ruby 2.1.
Type confusion exists in _cancel_eval Ruby's TclTkIp class method.
Attacker passing different type of object than String as 'retval' argument can cause arbitrary code execution.
RubyGems contains a Directory Traversal vulnerability in install_location function of package.rb that can result in path traversal when writing to a symlinked basedir outside of the root.
RubyGems contains a Deserialization of Untrusted Data vulnerability in owner command that can result in code execution. This attack appear to be exploitable via victim must run the `gem owner` command on a gem with a specially crafted YAML file.
For Debian 8 'Jessie', these problems have been fixed in version 2.1.5-2+deb8u5.
We recommend that you upgrade your ruby2.1 packages.
NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
SolutionUpgrade the affected packages.