CVE-2013-4363

Summary

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.

Impact & exploitability

AV:N/AC:M/Au:N/C:N/I:N/A:P

Affected products we track (1)

Recommendation

Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.

Official patch: http://blog.rubygems.org/2013/09/24/CVE-2013-4363.html ↗

Additional information

• NVD record
• http://blog.rubygems.org/2013/09/24/CVE-2013-4363.htmlPatch
• http://www.openwall.com/lists/oss-security/2013/09/14/3Patch
• http://www.openwall.com/lists/oss-security/2013/09/18/8Patch
• http://www.openwall.com/lists/oss-security/2013/09/20/1Patch
• https://puppet.com/security/cve/cve-2013-4363