Vulnerability Monitor

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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.

Published

2011-12-30T01:55:01.437

Last Modified

2025-04-11T00:51:21.963

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 7.8 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: COMPLETE

Exploitability Score

10.0

Impact Score

6.9

Weaknesses

Type: Primary
CWE-20

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	ruby-lang	ruby	≤ 1.8.7-p352	Yes
Application	ruby-lang	ruby	1.8.7-p299	Yes
Application	ruby-lang	ruby	1.8.7-p302	Yes
Application	ruby-lang	ruby	1.8.7-p330	Yes
Application	ruby-lang	ruby	1.8.7-p334	Yes

References

http://archives.neohapsis.com/archives/bugtraq/2011-12/0181.html ([email protected])
http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-talk/391606 ([email protected])
http://jvn.jp/en/jp/JVN90615481/index.html ([email protected])
http://jvndb.jvn.jp/ja/contents/2012/JVNDB-2012-000066.html ([email protected])
http://lists.apple.com/archives/security-announce/2012/May/msg00001.html ([email protected])
http://rhn.redhat.com/errata/RHSA-2012-0069.html ([email protected])
http://rhn.redhat.com/errata/RHSA-2012-0070.html ([email protected])
http://secunia.com/advisories/47405 ([email protected])
http://secunia.com/advisories/47822 ([email protected])
http://support.apple.com/kb/HT5281 ([email protected])
http://www.kb.cert.org/vuls/id/903934 US Government Resource ([email protected])
http://www.nruns.com/_downloads/advisory28122011.pdf ([email protected])
http://www.ocert.org/advisories/ocert-2011-003.html ([email protected])
http://www.ruby-lang.org/en/news/2011/12/28/denial-of-service-attack-was-found-for-rubys-hash-algorithm/ ([email protected])
http://www.securitytracker.com/id?1026474 ([email protected])
https://exchange.xforce.ibmcloud.com/vulnerabilities/72020 ([email protected])
http://archives.neohapsis.com/archives/bugtraq/2011-12/0181.html (af854a3a-2127-422b-91ae-364da2661108)
http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-talk/391606 (af854a3a-2127-422b-91ae-364da2661108)
http://jvn.jp/en/jp/JVN90615481/index.html (af854a3a-2127-422b-91ae-364da2661108)
http://jvndb.jvn.jp/ja/contents/2012/JVNDB-2012-000066.html (af854a3a-2127-422b-91ae-364da2661108)
http://lists.apple.com/archives/security-announce/2012/May/msg00001.html (af854a3a-2127-422b-91ae-364da2661108)
http://rhn.redhat.com/errata/RHSA-2012-0069.html (af854a3a-2127-422b-91ae-364da2661108)
http://rhn.redhat.com/errata/RHSA-2012-0070.html (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/47405 (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/47822 (af854a3a-2127-422b-91ae-364da2661108)
http://support.apple.com/kb/HT5281 (af854a3a-2127-422b-91ae-364da2661108)
http://www.kb.cert.org/vuls/id/903934 US Government Resource (af854a3a-2127-422b-91ae-364da2661108)
http://www.nruns.com/_downloads/advisory28122011.pdf (af854a3a-2127-422b-91ae-364da2661108)
http://www.ocert.org/advisories/ocert-2011-003.html (af854a3a-2127-422b-91ae-364da2661108)
http://www.ruby-lang.org/en/news/2011/12/28/denial-of-service-attack-was-found-for-rubys-hash-algorithm/ (af854a3a-2127-422b-91ae-364da2661108)
http://www.securitytracker.com/id?1026474 (af854a3a-2127-422b-91ae-364da2661108)
https://exchange.xforce.ibmcloud.com/vulnerabilities/72020 (af854a3a-2127-422b-91ae-364da2661108)