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Mend.io Vulnerability Database

CVE-2011-4815

Date: December 29, 2011

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.

Severity Score

7.5

Related Resources (20)

Url: http://www.nruns.com/_downloads/advisory28122011.pdf

Url: http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-talk/391606

Url: http://support.apple.com/kb/HT5281

Url: https://people.canonical.com/~ubuntu-security/cve/CVE-2011-4815

Url: http://jvn.jp/en/jp/JVN90615481/index.html

Url: http://rhn.redhat.com/errata/RHSA-2012-0070.html

Url: http://www.kb.cert.org/vuls/id/903934

Url: http://archives.neohapsis.com/archives/bugtraq/2011-12/0181.html

Url: http://www.ruby-lang.org/en/news/2011/12/28/denial-of-service-attack-was-found-for-rubys-hash-algorithm/

Url: https://access.redhat.com/security/cve/CVE-2011-4815

Url: https://exchange.xforce.ibmcloud.com/vulnerabilities/72020

Url: http://lists.apple.com/archives/security-announce/2012/May/msg00001.html

Url: http://www.securitytracker.com/id?1026474

Url: http://jvndb.jvn.jp/ja/contents/2012/JVNDB-2012-000066.html

Url: http://www.ocert.org/advisories/ocert-2011-003.html

Url: http://secunia.com/advisories/47405

Url: http://secunia.com/advisories/47822

Url: http://rhn.redhat.com/errata/RHSA-2012-0069.html

Url: https://nvd.nist.gov/vuln/detail/CVE-2011-4815

Url: https://www.mend.io/vulnerability-database/CVE-2011-4815

Severity Score

7.5

Weakness Type (CWE)

Input Validation

CWE-20

CVSS v3.1

Base Score:	7.5
Attack Vector (AV):	NETWORK
Attack Complexity (AC):	LOW
Privileges Required (PR):	NONE
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	NONE
Integrity (I):	NONE
Availability (A):	HIGH

CVSS v2

Base Score:	7.8
Access Vector (AV):	NETWORK
Access Complexity (AC):	LOW
Authentication (AU):	NONE
Confidentiality (C):	NONE
Integrity (I):	NONE
Availability (A):	COMPLETE
Additional information:

Mend.io Vulnerability Database

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CVE-2011-4815

Date: December 29, 2011

Severity Score

Related Resources (20)

Severity Score

Weakness Type (CWE)

CVSS v3.1

CVSS v2

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