Medium: rubygems

Issue Overview:

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 expression.

Affected Packages:

rubygems

Issue Correction:
Run yum update rubygems to update your system.

New Packages:

noarch:  
    rubygems-devel-1.8.25-7.12.amzn1.noarch  
    rubygems-1.8.25-7.12.amzn1.noarch  
  
src:  
    rubygems-1.8.25-7.12.amzn1.src  

Additional References

Red Hat: CVE-2013-4287

Mitre: CVE-2013-4287