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rubygemsRubySecRUBY:RUBYGEMS-UPDATE-2013-4363-97163
HistorySep 23, 2013 - 8:00 p.m.

CVE-2013-4363 rubygems: version regex algorithmic complexity vulnerability, incomplete CVE-2013-4287 fix

2013-09-2320:00:00
RubySec
rubysec.com
11

‘Algorithmic complexity vulnerability in Gem::Version::ANCHORED_VERSION_PATTERN
in lib/rubygems/version.rb in RubyGems before 1.8.23.2, 1.8.24 through 1.8.26, 2.0.x
before 2.0.10, and 2.1.x before 2.1.5, 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 expression. NOTE:
this issue is due to an incomplete fix for CVE-2013-4287.’