Vulnerability Description
Ruby (aka CRuby) before 1.8.7-p357 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
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ruby-Lang | Ruby | <= 1.8.7-p352 |
Related Weaknesses (CWE)
References
- http://archives.neohapsis.com/archives/bugtraq/2011-12/0181.html
- http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-talk/391606
- http://jvn.jp/en/jp/JVN90615481/index.html
- http://jvndb.jvn.jp/ja/contents/2012/JVNDB-2012-000066.html
- http://lists.apple.com/archives/security-announce/2012/May/msg00001.html
- http://rhn.redhat.com/errata/RHSA-2012-0069.html
- http://rhn.redhat.com/errata/RHSA-2012-0070.html
- http://secunia.com/advisories/47405
- http://secunia.com/advisories/47822
- http://support.apple.com/kb/HT5281
- http://www.kb.cert.org/vuls/id/903934US Government Resource
- http://www.nruns.com/_downloads/advisory28122011.pdf
- http://www.ocert.org/advisories/ocert-2011-003.html
- http://www.ruby-lang.org/en/news/2011/12/28/denial-of-service-attack-was-found-f
- http://www.securitytracker.com/id?1026474
FAQ
What is CVE-2011-4815?
CVE-2011-4815 is a vulnerability with a CVSS score of 7.8 (HIGH). Ruby (aka CRuby) before 1.8.7-p357 computes hash values without restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (C...
How severe is CVE-2011-4815?
CVE-2011-4815 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2011-4815?
Check the references section above for vendor advisories and patch information. Affected products include: Ruby-Lang Ruby.