CVE-2011-3009

ruby: Properly initialize the random number generator when forking new process

Severity Score

5.0

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Ruby before 1.8.6-p114 does not reset the random seed upon forking, which makes it easier for context-dependent attackers to predict the values of random numbers by leveraging knowledge of the number sequence obtained in a different child process, a related issue to CVE-2003-0900.

Ruby en versiones anteriores a la 1.8.6-p114 no resetea la semilla aleatoria después de la creacción de procesos ("forking"), lo que facilita a atacantes, dependiendo del contexto, predecir el valor de números aleatorios basándose en el conocimiento del número de secuencia obtenido en un proceso hijo distinto. Un problema relacionado con el CVE-2003-0900.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2011-08-05 CVE Reserved
2011-08-05 CVE Published
2023-03-07 EPSS Updated
2024-08-06 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-310: Cryptographic Issues

CAPEC

References (8)

URL	Tag	Source
http://redmine.ruby-lang.org/issues/show/4338	X_refsource_misc
http://www.securityfocus.com/bid/49126	Vdb Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/69157	Vdb Entry

URL	Date	SRC

URL	Date	SRC
http://www.openwall.com/lists/oss-security/2011/07/20/1	2017-08-29

URL	Date	SRC
http://rhn.redhat.com/errata/RHSA-2012-0070.html	2017-08-29
http://www.redhat.com/support/errata/RHSA-2011-1581.html	2017-08-29
https://access.redhat.com/security/cve/CVE-2011-3009	2012-01-30
https://bugzilla.redhat.com/show_bug.cgi?id=722415	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"				<= 1.8.6 Search vendor "Ruby-lang" for product "Ruby" and version " <= 1.8.6"		p111		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				1.8.6 Search vendor "Ruby-lang" for product "Ruby" and version "1.8.6"		p110		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				1.8.6 Search vendor "Ruby-lang" for product "Ruby" and version "1.8.6"		p36		Affected