Vulnerability Description
JRuby before 1.6.5.1 computes hash values without restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted input to an application that maintains a hash table.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Jruby | Jruby | < 1.6.5.1 |
Related Weaknesses (CWE)
References
- http://archives.neohapsis.com/archives/bugtraq/2011-12/0181.htmlBroken Link
- http://jruby.org/2011/12/27/jruby-1-6-5-1.htmlVendor Advisory
- http://rhn.redhat.com/errata/RHSA-2012-1232.htmlBroken Link
- http://secunia.com/advisories/47407Third Party Advisory
- http://secunia.com/advisories/50084Third Party Advisory
- http://security.gentoo.org/glsa/glsa-201207-06.xmlThird Party Advisory
- http://www.kb.cert.org/vuls/id/903934Third Party AdvisoryUS Government Resource
- http://www.nruns.com/_downloads/advisory28122011.pdfThird Party Advisory
- http://www.ocert.org/advisories/ocert-2011-003.htmlThird Party Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/72019Third Party AdvisoryVDB Entry
- http://archives.neohapsis.com/archives/bugtraq/2011-12/0181.htmlBroken Link
- http://jruby.org/2011/12/27/jruby-1-6-5-1.htmlVendor Advisory
- http://rhn.redhat.com/errata/RHSA-2012-1232.htmlBroken Link
- http://secunia.com/advisories/47407Third Party Advisory
- http://secunia.com/advisories/50084Third Party Advisory
FAQ
What is CVE-2011-4838?
CVE-2011-4838 is a vulnerability with a CVSS score of 5.0 (MEDIUM). JRuby before 1.6.5.1 computes hash values without restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption...
How severe is CVE-2011-4838?
CVE-2011-4838 has been rated MEDIUM with a CVSS base score of 5.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2011-4838?
Check the references section above for vendor advisories and patch information. Affected products include: Jruby Jruby.