National Cyber Awareness System

Vulnerability Summary for CVE-2011-2705

Overview

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.

Impact

CVSS Severity (version 2.0):

CVSS Version 2 Metrics:

References to Advisories, Solutions, and Tools

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External Source: CONFIRM

Name: https://bugzilla.redhat.com/show_bug.cgi?id=722415

Type: Patch Information

Hyperlink:https://bugzilla.redhat.com/show_bug.cgi?id=722415

External Source: CONFIRM

Name: http://www.ruby-lang.org/en/news/2011/07/15/ruby-1-9-2-p290-is-released/

Type: Patch Information

Hyperlink:http://www.ruby-lang.org/en/news/2011/07/15/ruby-1-9-2-p290-is-released/

External Source: CONFIRM

Name: http://www.ruby-lang.org/en/news/2011/07/02/ruby-1-8-7-p352-released/

Type: Patch Information

Hyperlink:http://www.ruby-lang.org/en/news/2011/07/02/ruby-1-8-7-p352-released/

External Source: MLIST

Name: [oss-security] 20110720 Re: CVE Request: ruby PRNG fixes

Type: Patch Information

Hyperlink:http://www.openwall.com/lists/oss-security/2011/07/20/16

External Source: MLIST

Name: [oss-security] 20110720 Re: CVE Request: ruby PRNG fixes

Type: Patch Information

Hyperlink:http://www.openwall.com/lists/oss-security/2011/07/20/1

External Source: MLIST

Name: [oss-security] 20110712 Re: CVE Request: ruby PRNG fixes

Type: Patch Information

Hyperlink:http://www.openwall.com/lists/oss-security/2011/07/12/14

External Source: MLIST

Name: [oss-security] 20110711 CVE Request: ruby PRNG fixes

Type: Patch Information

Hyperlink:http://www.openwall.com/lists/oss-security/2011/07/11/1

External Source: CONFIRM

Name: http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=32050

Type: Patch Information

Hyperlink:http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=32050

External Source: FEDORA

Name: FEDORA-2011-9374

Type: Patch Information

Hyperlink:http://lists.fedoraproject.org/pipermail/package-announce/2011-July/063062.html

External Source: BID

Name: 49015

Hyperlink:http://www.securityfocus.com/bid/49015

External Source: REDHAT

Name: RHSA-2011:1581

Hyperlink:http://www.redhat.com/support/errata/RHSA-2011-1581.html

External Source: CONFIRM

Name: http://svn.ruby-lang.org/repos/ruby/tags/v1_9_2_290/ChangeLog

Hyperlink:http://svn.ruby-lang.org/repos/ruby/tags/v1_9_2_290/ChangeLog

External Source: CONFIRM

Name: http://svn.ruby-lang.org/repos/ruby/tags/v1_8_7_352/ChangeLog

Hyperlink:http://svn.ruby-lang.org/repos/ruby/tags/v1_8_7_352/ChangeLog

External Source: CONFIRM

Name: http://redmine.ruby-lang.org/issues/4579

Hyperlink:http://redmine.ruby-lang.org/issues/4579

External Source: FEDORA

Name: FEDORA-2011-9359

Hyperlink:http://lists.fedoraproject.org/pipermail/package-announce/2011-July/063071.html