Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Rubygems | Rubygems | <= 1.8.23 |
| Ruby-Lang | Ruby | 1.9 |
Related Weaknesses (CWE)
References
- http://blog.rubygems.org/2013/09/24/CVE-2013-4363.htmlPatchVendor Advisory
- http://www.openwall.com/lists/oss-security/2013/09/14/3Patch
- http://www.openwall.com/lists/oss-security/2013/09/18/8Patch
- http://www.openwall.com/lists/oss-security/2013/09/20/1Patch
- https://puppet.com/security/cve/cve-2013-4363
- http://blog.rubygems.org/2013/09/24/CVE-2013-4363.htmlPatchVendor Advisory
- http://www.openwall.com/lists/oss-security/2013/09/14/3Patch
- http://www.openwall.com/lists/oss-security/2013/09/18/8Patch
- http://www.openwall.com/lists/oss-security/2013/09/20/1Patch
- https://puppet.com/security/cve/cve-2013-4363
FAQ
What is CVE-2013-4363?
CVE-2013-4363 is a vulnerability with a CVSS score of 4.3 (MEDIUM). 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....
How severe is CVE-2013-4363?
CVE-2013-4363 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2013-4363?
Check the references section above for vendor advisories and patch information. Affected products include: Rubygems Rubygems, Ruby-Lang Ruby.