National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2011-4815 Detail

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.

Source:  MITRE
Description Last Modified:  12/29/2011

Impact

CVSS v2.0 Severity and Metrics:

Base Score: 7.8 HIGH
Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:C) (V2 legend)
Impact Subscore: 6.9
Exploitability Subscore: 10.0


Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Complete
Additional Information:
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
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://support.apple.com/kb/HT5281
http://www.kb.cert.org/vuls/id/903934 US 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-for-rubys-hash-algorithm/
http://www.securitytracker.com/id?1026474
https://exchange.xforce.ibmcloud.com/vulnerabilities/72020

Technical Details

Vulnerability Type (View All)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:ruby-lang:ruby:1.8.7-p299:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:ruby-lang:ruby:1.8.7-p302:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:ruby-lang:ruby:1.8.7-p330:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:ruby-lang:ruby:1.8.7-p334:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (including)
1.8.7-p352


Change History

2 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2011-4815
NVD Published Date:
12/29/2011
NVD Last Modified:
08/28/2017