Vulnerability Report

CVE-2013-4363

Title: Ruby-Lang Ruby Denial of Service (DoS)

DoS

Proof Of Concept

No public PoC currently indexed for CVE-2013-4363.

CWE Category CWE-310
Published Date Oct 17, 2013
Modified Date Apr 29, 2026
Exploit Status Not Found
Score 4.3 CVSS v2.0
Exploit Probability (EPSS)
0.59%

Vulnerability Summary

CVE-2013-4363: 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.

Impacted Vendors

R
rubygems 1
Y
yukihiro_matsumoto 1
R
rubyforge 1
R
ruby-lang 1

Reference Links

http://blog.rubygems.org/2013/09/24/CVE-2013-4363.html 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 https://puppet.com/security/cve/cve-2013-4363 http://blog.rubygems.org/2013/09/24/CVE-2013-4363.html 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 https://puppet.com/security/cve/cve-2013-4363
CVSS v2.0
Source Entity [email protected]
Severity MEDIUM
4.3
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:N/AC:M/Au:N/C:N/I:N/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2013-4363 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector N/A
Complexity N/A
Privileges N/A
Interaction NONE
CVSS Vector String AV:N/AC:M/Au:N/C:N/I:N/A:P

Affected Stack

No specific products linked.