|Bugzilla:||1002364: CVE-2013-4287 rubygems: version regex algorithmic complexity vulnerability|
The MITRE CVE dictionary describes this issue as:
Algorithmic complexity vulnerability in Gem::Version::VERSION_PATTERN in lib/rubygems/version.rb in RubyGems before 126.96.36.199, 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 expression.
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Red Hat security errata
|MRG Grid for RHEL 6 Server v.2||RHSA-2013:1852||December 17, 2013|
|OpenStack 3||RHSA-2013:1523||November 14, 2013|
|RHOSE Client 2.0 (rubygems)||RHSA-2014:0207||February 24, 2014|
|Red Hat Enterprise Linux version 6 (rubygems)||RHSA-2013:1441||October 17, 2013|
|Red Hat Software Collections for RHEL 6 Server (ruby193-ruby)||RHSA-2013:1427||October 15, 2013|
Red Hat would like to thank Rubygems upstream for reporting this vulnerability. Upstream acknowledges Damir Sharipov as the original reporter.
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