CVE-2011-2686

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Summary

CVECVE-2011-2686
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2011-08-05 21:55:04 UTC
Updated2026-04-29 01:13:23 UTC
DescriptionRuby before 1.8.7-p352 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. NOTE: this issue exists because of a regression during Ruby 1.8.6 development.

Risk And Classification

Primary CVSS: v2.0 5 from [email protected]

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

Problem Types: CWE-310 | n/a

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
None

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Ruby-lang Ruby 1.8.7 p22 All All
Application Ruby-lang Ruby 1.8.7 p71 All All
Application Ruby-lang Ruby 1.8.7 p72 All All
Application Ruby-lang Ruby 1.8.7-160 All All All
Application Ruby-lang Ruby 1.8.7-173 All All All
Application Ruby-lang Ruby 1.8.7-248 All All All
Application Ruby-lang Ruby 1.8.7-249 All All All
Application Ruby-lang Ruby 1.8.7-299 All All All
Application Ruby-lang Ruby 1.8.7-302 All All All
Application Ruby-lang Ruby 1.8.7-330 All All All
Application Ruby-lang Ruby 1.8.7-p21 All All All
Application Ruby-lang Ruby All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
oss-security - CVE Request: ruby PRNG fixes af854a3a-2127-422b-91ae-364da2661108 www.openwall.com Patch
[ruby] Revision 31713 af854a3a-2127-422b-91ae-364da2661108 svn.ruby-lang.org Patch
svn.ruby-lang.org/repos/ruby/tags/v1_8_7_352/ChangeLog af854a3a-2127-422b-91ae-364da2661108 svn.ruby-lang.org
oss-security - Re: CVE Request: ruby PRNG fixes af854a3a-2127-422b-91ae-364da2661108 www.openwall.com Patch
oss-security - Re: CVE Request: ruby PRNG fixes af854a3a-2127-422b-91ae-364da2661108 www.openwall.com Patch
Ruby 1.8.7-p352 released af854a3a-2127-422b-91ae-364da2661108 www.ruby-lang.org Patch
oss-security - Re: CVE Request: ruby PRNG fixes af854a3a-2127-422b-91ae-364da2661108 www.openwall.com Patch
IBM X-Force Exchange af854a3a-2127-422b-91ae-364da2661108 exchange.xforce.ibmcloud.com
[SECURITY] Fedora 15 Update: ruby-1.8.7.352-1.fc15 af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org Patch
Ruby Random Number Generation Local Denial Of Service Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
722415 – (CVE-2011-2686, CVE-2011-2705, CVE-2011-3009) CVE-2011-2686 CVE-2011-2705 CVE-2011-3009 ruby: Properly initialize the random number generator when forking new process af854a3a-2127-422b-91ae-364da2661108 bugzilla.redhat.com Patch
[SECURITY] Fedora 14 Update: ruby-1.8.7.352-1.fc14 af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org Patch
Redmine 404 error af854a3a-2127-422b-91ae-364da2661108 redmine.ruby-lang.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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