CVE-2013-4363 rubygems: version regex algorithmic complexity vulnerability, incomplete CVE-2013-4287 fix
Published: September 24, 2013
SECURITY IDENTIFIERS
- CVE: CVE-2013-4363 (NVD)
- GHSA: GHSA-9qvm-2vhf-q649
- OSVDB: OSVDB-97163
- Vendor Advisory: http://blog.rubygems.org/2013/09/24/CVE-2013-4363.html
GEM
LIBRARY
SEVERITY
CVSS v2.0: 4.3 (Medium)
PATCHED VERSIONS
~> 1.8.23.2
~> 1.8.27
~> 2.0.10
>= 2.1.5
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.'