Vulnerability Details

Ruby Random Number Generation Local Denial Of Service Vulnerability

Published: 2011-08-29 14:22:41
CVE Author: NIST National Vulnerability Database

CVSS Base Vector:
AV:N/AC:L/Au:N/C:P/I:N/A:N

Detection Type:
Windows Registry

Impact:
Successful exploits may allow local attackers to cause denial-of-service conditions.

Affected Versions:
Ruby Versions prior to 1.8.7-p352

Technical Details:
The flaw exists because ruby 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.

Recommendations:
Upgrade to Ruby version 1.8.7-p352 or later

Solution Type:
Vendor Patch

Summary:
This host is installed with Ruby and is prone to local denial of service vulnerability.

NIST (National Institute of Standards and Technology) NVD (National Vulnerability Database)

https://nvd.nist.gov/vuln/detail/CVE-2011-2686

SecurityFocus Bugtraq ID:

https://www.securityfocus.com/bid/49015

References:

http://xforce.iss.net/xforce/xfdb/69032
http://redmine.ruby-lang.org/issues/show/4338
http://www.ruby-lang.org/en/news/2011/07/02/ruby-1-8-7-p352-released/
http://rubyforge.org/frs/?group_id=167

Severity
Medium
CVSS Score
5.0
Published
2011-08-29
Modified
2019-05-17
Category
Denial of Service

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