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CVE-2013-4287

4.3 · MEDIUM

Algorithmic complexity vulnerability in Gem::Version::VERSION_PATTERN in lib/rubygems/version.rb in RubyGems before 1.8.23.1, 1.8.24 through 1.8.25, 2.0.x before 2.0.8, and 2.1.x before 2.1.0, as u…

Published Oct 17, 2013redhatCWE-310EPSS 3.33%

Overview

CVE-2013-4287 is a medium-severity vulnerability affecting redhat enterprise_linux. It was published on October 17, 2013 and has a CVSS 2.0 base score of 4.3 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 4.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Algorithmic complexity vulnerability in Gem::Version::VERSION_PATTERN in lib/rubygems/version.rb in RubyGems before 1.8.23.1, 1.8.24 through 1.8.25, 2.0.x before 2.0.8, and 2.1.x before 2.1.0, 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.

Remediation

Check the references section for vendor advisories and patches from redhat. Update enterprise_linux to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
rubygemsrubygems0Affected

References

Refblog.rubygems.org/2013/09/09/CVE-2013-4287.htmlRefrhn.redhat.com/errata/RHSA-2013-1427.htmlRefrhn.redhat.com/errata/RHSA-2013-1441.htmlRefrhn.redhat.com/errata/RHSA-2013-1523.htmlRefrhn.redhat.com/errata/RHSA-2013-1852.htmlRefrhn.redhat.com/errata/RHSA-2014-0207.htmlRefsecunia.com/advisories/55381Refwww.openwall.com/lists/oss-security/2013/09/10/1Refpuppet.com/security/cve/cve-2013-4287Refblog.rubygems.org/2013/09/09/CVE-2013-4287.html

How CyberStrike helps

Frequently asked questions

What is CVE-2013-4287?

CVE-2013-4287 is a medium-severity vulnerability affecting redhat enterprise_linux. It was published on October 17, 2013 and has a CVSS 2.0 base score of 4.3 (MEDIUM).

How severe is CVE-2013-4287?

This vulnerability has a CVSS 2.0 base score of 4.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2013-4287?

Check the references section for vendor advisories and patches from redhat. Update enterprise_linux to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2013-4287?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2013-4287 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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