CVE-2011-4815

ruby: hash table collisions CPU usage DoS (oCERT-2011-003)

Severity Score

7.8

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

Ruby (también conocido como CRuby) anterior a v1.8.7-P357 calcula los valores de hash sin restringir la capacidad de desencadenar colisiones hash predecible, que permite a atacantes dependientes de contexto para causar una denegación de servicio (consumo de CPU) a través de entrada diseñado para una aplicación que mantiene un hash mesa.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Complete

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2011-12-14 CVE Reserved
2011-12-28 CVE Published
2023-03-07 EPSS Updated
2024-08-07 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-20: Improper Input Validation

CAPEC

References (18)

URL	Tag	Source
http://archives.neohapsis.com/archives/bugtraq/2011-12/0181.html	Mailing List
http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-talk/391606	Mailing List
http://jvn.jp/en/jp/JVN90615481/index.html	Third Party Advisory
http://jvndb.jvn.jp/ja/contents/2012/JVNDB-2012-000066.html	Third Party Advisory
http://secunia.com/advisories/47405	Third Party Advisory
http://secunia.com/advisories/47822	Third Party Advisory
http://support.apple.com/kb/HT5281	X_refsource_confirm
http://www.kb.cert.org/vuls/id/903934	Third Party Advisory
http://www.nruns.com/_downloads/advisory28122011.pdf	X_refsource_misc
http://www.ocert.org/advisories/ocert-2011-003.html	X_refsource_misc
http://www.ruby-lang.org/en/news/2011/12/28/denial-of-service-attack-was-found-for-rubys-hash-algorithm	X_refsource_confirm
http://www.securitytracker.com/id?1026474	Vdb Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/72020	Vdb Entry

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://lists.apple.com/archives/security-announce/2012/May/msg00001.html	2017-08-29
http://rhn.redhat.com/errata/RHSA-2012-0069.html	2017-08-29
http://rhn.redhat.com/errata/RHSA-2012-0070.html	2017-08-29
https://access.redhat.com/security/cve/CVE-2011-4815	2012-01-30
https://bugzilla.redhat.com/show_bug.cgi?id=750564	2012-01-30

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				<= 1.8.7-p352 Search vendor "Ruby-lang" for product "Ruby" and version " <= 1.8.7-p352"		-		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				1.8.7-p299 Search vendor "Ruby-lang" for product "Ruby" and version "1.8.7-p299"		-		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				1.8.7-p302 Search vendor "Ruby-lang" for product "Ruby" and version "1.8.7-p302"		-		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				1.8.7-p330 Search vendor "Ruby-lang" for product "Ruby" and version "1.8.7-p330"		-		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				1.8.7-p334 Search vendor "Ruby-lang" for product "Ruby" and version "1.8.7-p334"		-		Affected