{"schemaVersion":3,"id":"CVE-2013-4287","aliases":["RHSA-2013:1427","RHSA-2013:1523","RHSA-2014:0207","DEBIAN-CVE-2013-4287","GHSA-9j7m-rjqx-48vh"],"status":"published","duplicateOf":null,"title":null,"description":"Algorithmic complexity vulnerability in Gem::Version::VERSION_PATTERN 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 consumption) via a crafted gem version that triggers a large amount of backtracking in a regular 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