CVE-2011-2686

Ruby 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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
5 UNKNOWN
NETWORK
LOW
AV:N/AC:L/Au:N/C:P/I:N/A:N
redhatCNA
---
---
CVEADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 81%
VendorProductVersion
ruby-langruby
𝑥
≤ 1.8.7-334
ruby-langruby
1.8.7:p22
ruby-langruby
1.8.7:p71
ruby-langruby
1.8.7:p72
ruby-langruby
1.8.7-160
ruby-langruby
1.8.7-173
ruby-langruby
1.8.7-248
ruby-langruby
1.8.7-249
ruby-langruby
1.8.7-299
ruby-langruby
1.8.7-302
ruby-langruby
1.8.7-330
ruby-langruby
1.8.7-p21
𝑥
= Vulnerable software versions
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
ruby1.8
oneiric
not-affected
natty
Fixed 1.8.7.302-2ubuntu0.1
released
maverick
Fixed 1.8.7.299-2ubuntu0.1
released
lucid
Fixed 1.8.7.249-2ubuntu0.1
released
hardy
ignored
Common Weakness Enumeration
References
http://lists.fedoraproject.org/pipermail/package-announce/2011-July/063062.html
http://lists.fedoraproject.org/pipermail/package-announce/2011-July/063071.html
http://redmine.ruby-lang.org/issues/show/4338
http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=31713
http://svn.ruby-lang.org/repos/ruby/tags/v1_8_7_352/ChangeLog
http://www.openwall.com/lists/oss-security/2011/07/11/1
http://www.openwall.com/lists/oss-security/2011/07/12/14
http://www.openwall.com/lists/oss-security/2011/07/20/1
http://www.openwall.com/lists/oss-security/2011/07/20/16
http://www.ruby-lang.org/en/news/2011/07/02/ruby-1-8-7-p352-released/
http://www.securityfocus.com/bid/49015
https://bugzilla.redhat.com/show_bug.cgi?id=722415
https://exchange.xforce.ibmcloud.com/vulnerabilities/69032
http://lists.fedoraproject.org/pipermail/package-announce/2011-July/063062.html
http://lists.fedoraproject.org/pipermail/package-announce/2011-July/063071.html
http://redmine.ruby-lang.org/issues/show/4338
http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=31713
http://svn.ruby-lang.org/repos/ruby/tags/v1_8_7_352/ChangeLog
http://www.openwall.com/lists/oss-security/2011/07/11/1
http://www.openwall.com/lists/oss-security/2011/07/12/14
http://www.openwall.com/lists/oss-security/2011/07/20/1
http://www.openwall.com/lists/oss-security/2011/07/20/16
http://www.ruby-lang.org/en/news/2011/07/02/ruby-1-8-7-p352-released/
http://www.securityfocus.com/bid/49015
https://bugzilla.redhat.com/show_bug.cgi?id=722415
https://exchange.xforce.ibmcloud.com/vulnerabilities/69032