rubygems: version regex algorithmic complexity vulnerability

A denial of service vulnerability exists in the RubyGems versions 2.0.7 or older, such that when RubyGems validates versioning it performs a wrong regular expression causing resource consumption due to algorithmic complexity...

CVE-2013-4287 rubygems: version regex algorithmic complexity vulnerability

Algorithmic complexity vulnerability in Gem::Version::VERSIONPATTERN in lib/rubygems/version.rb in RubyGems before 1.8.23.1, 1.8.24 through 1.8.25, 2.0.x before 2.0.8, and 2.1.x before 2.1.0, as used in Ruby 1.9.0 through 2.0.0p247, allows remote attackers to cause a denial of service CPU...