CVE-2013-4363

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.

Affected packages (2)

• Debian/rubygemsfrom 0, < 3.2.0~rc.1-1
• RubyGems/rubygems-updatefrom 0, < 1.8.23.2

References (9)

• ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2013-4363
• ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2013-4363
• PATCHhttps://github.com/rubygems/rubygems
• WEBhttp://blog.rubygems.org/2013/09/24/CVE-2013-4363.html
• WEBhttps://github.com/rubysec/ruby-advisory-db/blob/master/gems/rubygems-update/CVE-2013-4363.yml
• WEBhttps://web.archive.org/web/20170331150441/https://puppet.com/security/cve/cve-2013-4363
• WEBhttp://www.openwall.com/lists/oss-security/2013/09/14/3
• WEBhttp://www.openwall.com/lists/oss-security/2013/09/18/8
• WEBhttp://www.openwall.com/lists/oss-security/2013/09/20/1