PT-2011-4027 · Ruby+1 · Ruby+1

Jan Lieskovsky · Published 2011-08-05 · Updated 2023-02-13 · CVE-2011-2686

Positive Technologies (AI Summary)

CVSS v2.0

5.0

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Ruby versions prior to 1.8.7-p352

Description The issue makes it easier for attackers to predict the values of random numbers by leveraging knowledge of the number sequence obtained in a different child process. This occurs because the random seed is not reset upon forking.

Recommendations For versions prior to 1.8.7-p352, update to version 1.8.7-p352 or later to resolve the issue.

Fix

Weakness Enumeration

CWE-310

Related Identifiers

CVE-2011-2686

DLA-88-1

RHSA-2026:7305

RHSA-2026:7307

RHSA-2026:8838

SUSE-SU-2012_0147-1

SUSE-SU-2013_0611-1

Affected Products

Ruby

Suse

References · 14

• https://nvd.nist.gov/vuln/detail/CVE-2011-2686 · Security Note
• http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=31713 · Patch
• http://openwall.com/lists/oss-security/2011/07/11/1 · Patch
• http://openwall.com/lists/oss-security/2011/07/12/14 · Patch
• http://ruby-lang.org/en/news/2011/07/02/ruby-1-8-7-p352-released · Patch
• https://bugzilla.redhat.com/show_bug.cgi?id=722415 · Patch
• http://openwall.com/lists/oss-security/2011/07/20/1 · Patch
• http://openwall.com/lists/oss-security/2011/07/20/16 · Patch
• https://exchange.xforce.ibmcloud.com/vulnerabilities/69032 · Note
• http://svn.ruby-lang.org/repos/ruby/tags/v1_8_7_352/ChangeLog · Note
• http://lists.fedoraproject.org/pipermail/package-announce/2011-July/063062.html · Vendor Advisory, Patch
• http://securityfocus.com/bid/49015 · Note
• http://lists.fedoraproject.org/pipermail/package-announce/2011-July/063071.html · Vendor Advisory, Patch
• http://redmine.ruby-lang.org/issues/show/4338 · Note