CVE-2013-4363

Public on 2013-10-16
Modified on 2014-09-16
Description
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.
Severity
Medium severity
Medium
CVSS v3 Base Score
2.6
See breakdown

Affected Packages

Platform Package Release Date Advisory Status
Amazon Linux 1 ruby19 2014-02-26 ALAS-2014-290 Fixed
Amazon Linux 1 rubygems 2013-10-16 ALAS-2013-231 Fixed

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv2 2.6 AV:N/AC:H/Au:N/C:N/I:N/A:P
NVD CVSSv2 4.3 AV:N/AC:M/Au:N/C:N/I:N/A:P