CVE-2011-2705

N/A Unknown
Published: August 05, 2011 Modified: April 29, 2026
View on NVD

Description

The SecureRandom.random_bytes function in lib/securerandom.rb in Ruby before 1.8.7-p352 and 1.9.x before 1.9.2-p290 relies on PID values for initialization, which makes it easier for context-dependent attackers to predict the result string by leveraging knowledge of random strings obtained in an earlier process with the same PID.

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References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2011-July/063062.html
Source: secalert@redhat.com
Patch
http://lists.fedoraproject.org/pipermail/package-announce/2011-July/063071.html
Source: secalert@redhat.com
http://redmine.ruby-lang.org/issues/4579
Source: secalert@redhat.com
http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=32050
Source: secalert@redhat.com
Patch
http://svn.ruby-lang.org/repos/ruby/tags/v1_8_7_352/ChangeLog
Source: secalert@redhat.com
http://svn.ruby-lang.org/repos/ruby/tags/v1_9_2_290/ChangeLog
Source: secalert@redhat.com
http://www.openwall.com/lists/oss-security/2011/07/11/1
Source: secalert@redhat.com
Patch
http://www.openwall.com/lists/oss-security/2011/07/12/14
Source: secalert@redhat.com
Patch
http://www.openwall.com/lists/oss-security/2011/07/20/1
Source: secalert@redhat.com
Patch
http://www.openwall.com/lists/oss-security/2011/07/20/16
Source: secalert@redhat.com
Patch
http://www.redhat.com/support/errata/RHSA-2011-1581.html
Source: secalert@redhat.com
http://www.ruby-lang.org/en/news/2011/07/02/ruby-1-8-7-p352-released/
Source: secalert@redhat.com
Patch
http://www.ruby-lang.org/en/news/2011/07/15/ruby-1-9-2-p290-is-released/
Source: secalert@redhat.com
Patch
http://www.securityfocus.com/bid/49015
Source: secalert@redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=722415
Source: secalert@redhat.com
Patch
http://lists.fedoraproject.org/pipermail/package-announce/2011-July/063062.html
Source: af854a3a-2127-422b-91ae-364da2661108
Patch
http://lists.fedoraproject.org/pipermail/package-announce/2011-July/063071.html
Source: af854a3a-2127-422b-91ae-364da2661108
http://redmine.ruby-lang.org/issues/4579
Source: af854a3a-2127-422b-91ae-364da2661108
http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=32050
Source: af854a3a-2127-422b-91ae-364da2661108
Patch
http://svn.ruby-lang.org/repos/ruby/tags/v1_8_7_352/ChangeLog
Source: af854a3a-2127-422b-91ae-364da2661108
http://svn.ruby-lang.org/repos/ruby/tags/v1_9_2_290/ChangeLog
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.openwall.com/lists/oss-security/2011/07/11/1
Source: af854a3a-2127-422b-91ae-364da2661108
Patch
http://www.openwall.com/lists/oss-security/2011/07/12/14
Source: af854a3a-2127-422b-91ae-364da2661108
Patch
http://www.openwall.com/lists/oss-security/2011/07/20/1
Source: af854a3a-2127-422b-91ae-364da2661108
Patch
http://www.openwall.com/lists/oss-security/2011/07/20/16
Source: af854a3a-2127-422b-91ae-364da2661108
Patch
http://www.redhat.com/support/errata/RHSA-2011-1581.html
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.ruby-lang.org/en/news/2011/07/02/ruby-1-8-7-p352-released/
Source: af854a3a-2127-422b-91ae-364da2661108
Patch
http://www.ruby-lang.org/en/news/2011/07/15/ruby-1-9-2-p290-is-released/
Source: af854a3a-2127-422b-91ae-364da2661108
Patch
http://www.securityfocus.com/bid/49015
Source: af854a3a-2127-422b-91ae-364da2661108
https://bugzilla.redhat.com/show_bug.cgi?id=722415
Source: af854a3a-2127-422b-91ae-364da2661108
Patch

30 reference(s) from NVD

Quick Stats

CVSS v3 Score
N/A / 10.0
EPSS (Exploit Probability)
1.9%
78th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

CWE-20

Affected Vendors

ruby-lang

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