CVE-2013-4287

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.

Category

4.3
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 2.07% Top 20%
Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory rubygems.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.openwall.com/lists/oss-security/2013/09/10/1 mailing list patch
http://secunia.com/advisories/55381 third party advisory
http://rhn.redhat.com/errata/RHSA-2013-1523.html vendor advisory
http://blog.rubygems.org/2013/09/09/CVE-2013-4287.html patch vendor advisory
https://puppet.com/security/cve/cve-2013-4287
http://rhn.redhat.com/errata/RHSA-2013-1427.html vendor advisory
http://rhn.redhat.com/errata/RHSA-2013-1852.html vendor advisory
http://rhn.redhat.com/errata/RHSA-2013-1441.html vendor advisory
http://rhn.redhat.com/errata/RHSA-2014-0207.html vendor advisory

Frequently Asked Questions

What is the severity of CVE-2013-4287?
CVE-2013-4287 has been scored as a medium severity vulnerability.
How to fix CVE-2013-4287?
To fix CVE-2013-4287, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2013-4287 being actively exploited in the wild?
It is possible that CVE-2013-4287 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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