Improper input validation in Ruby-Lang Ruby
CVE-2011-4815
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.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v2 metric
CVSS v2 base score 7.8 (High). Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.041 (90.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 90th percentile — 90.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.041 · newest: 0.041 · change: 0.000
Affected products
- Ruby-Lang Ruby — versions 1.8.7-p299, 1.8.7-p302, 1.8.7-p330
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secunia.com/advisories/47405 (third-party-advisory)
- www.securitytracker.com/id (vdb-entry)
- www.nruns.com/_downloads/advisory28122011.pdf
- secunia.com/advisories/47822 (third-party-advisory)
- rhn.redhat.com/errata/RHSA-2012-0070.html (vendor-advisory)
- jvn.jp/en/jp/JVN90615481/index.html (third-party-advisory)
- exchange.xforce.ibmcloud.com/vulnerabilities/72020 (vdb-entry)
- www.kb.cert.org/vuls/id/903934 (US Government Resource, third-party-advisory)
- blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-talk/391606 (mailing-list)
- www.ruby-lang.org/en/news/2011/12/28/denial-of-service-attack-was-found-for-rub…
Frequently asked questions
- What is CVE-2011-4815?
- CVE-2011-4815 is a vulnerability in Ruby-Lang Ruby, classified under Improper Input Validation. Published 2011-12-30.
- Is CVE-2011-4815 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.