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Vulnerability details: VCID-yx2m-uv31-37dv
Vulnerability ID VCID-yx2m-uv31-37dv
Aliases CVE-2013-4363
GHSA-9qvm-2vhf-q649
Summary RubyGems Regular Expression Denial of Service 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.
Status Published
Exploitability 0.5
Weighted Severity 6.2
Risk 3.1
Affected and Fixed Packages Package Details
Weaknesses (4)
CWE-407 Inefficient Algorithmic Complexity
CWE-400 Uncontrolled Resource Consumption
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
generic_textual MODERATE http://blog.rubygems.org/2013/09/24/CVE-2013-4363.html
epss 0.00617 https://api.first.org/data/v1/epss?cve=CVE-2013-4363
epss 0.00617 https://api.first.org/data/v1/epss?cve=CVE-2013-4363
epss 0.00617 https://api.first.org/data/v1/epss?cve=CVE-2013-4363
epss 0.00617 https://api.first.org/data/v1/epss?cve=CVE-2013-4363
epss 0.00617 https://api.first.org/data/v1/epss?cve=CVE-2013-4363
epss 0.00617 https://api.first.org/data/v1/epss?cve=CVE-2013-4363
epss 0.00617 https://api.first.org/data/v1/epss?cve=CVE-2013-4363
epss 0.00617 https://api.first.org/data/v1/epss?cve=CVE-2013-4363
epss 0.00617 https://api.first.org/data/v1/epss?cve=CVE-2013-4363
cvssv3.1_qr MODERATE https://github.com/advisories/GHSA-9qvm-2vhf-q649
generic_textual MODERATE https://github.com/rubygems/rubygems
generic_textual MODERATE https://github.com/rubysec/ruby-advisory-db/blob/master/gems/rubygems-update/CVE-2013-4363.yml
generic_textual MODERATE https://nvd.nist.gov/vuln/detail/CVE-2013-4363
generic_textual MODERATE https://web.archive.org/web/20170331150441/https://puppet.com/security/cve/cve-2013-4363
generic_textual MODERATE http://www.openwall.com/lists/oss-security/2013/09/14/3
generic_textual MODERATE http://www.openwall.com/lists/oss-security/2013/09/18/8
generic_textual MODERATE http://www.openwall.com/lists/oss-security/2013/09/20/1
Reference id Reference type URL
http://blog.rubygems.org/2013/09/24/CVE-2013-4363.html
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2013-4363.json
https://api.first.org/data/v1/epss?cve=CVE-2013-4363
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-4363
https://github.com/rubygems/rubygems
https://github.com/rubysec/ruby-advisory-db/blob/master/gems/rubygems-update/CVE-2013-4363.yml
https://nvd.nist.gov/vuln/detail/CVE-2013-4363
https://web.archive.org/web/20170331150441/https://puppet.com/security/cve/cve-2013-4363
http://www.openwall.com/lists/oss-security/2013/09/14/3
http://www.openwall.com/lists/oss-security/2013/09/18/8
http://www.openwall.com/lists/oss-security/2013/09/20/1
1009720 https://bugzilla.redhat.com/show_bug.cgi?id=1009720
722361 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=722361
CVE-2013-4363 https://puppet.com/security/cve/cve-2013-4363
GHSA-9qvm-2vhf-q649 https://github.com/advisories/GHSA-9qvm-2vhf-q649
No exploits are available.
Exploit Prediction Scoring System (EPSS)
Percentile 0.68943
EPSS Score 0.00617
Published At June 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-01T12:29:58.405647+00:00 GithubOSV Importer Import https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-9qvm-2vhf-q649/GHSA-9qvm-2vhf-q649.json 36.1.3