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Category:   Application (Generic)  >   Ruby Vendors:   Matsumoto, Yukihiro
Ruby OpenSSL::X509::Name() May Fail to Prevent Remote Users from Bypassing Security Restrictions on the Target System
SecurityTracker Alert ID:  1042105
SecurityTracker URL:  http://securitytracker.com/id/1042105
CVE Reference:   CVE-2018-16395   (Links to External Site)
Date:  Nov 13 2018
Impact:   Host/resource access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in Ruby. A remote user can bypass security controls on the target system.

A remote user can conduct an equality check of 'OpenSSL::X509::Name' and receive an incorrect response.

Tyler Eckstein reported this vulnerability.

Impact:   A remote user can bypass security controls on the target system in certain cases.
Solution:   The vendor has issued a source code fix (r65139) [in October 2018].

The vendor advisory is available at:

https://www.ruby-lang.org/en/news/2018/10/17/openssl-x509-name-equality-check-does-not-work-correctly-cve-2018-16395/

Vendor URL:  www.ruby-lang.org/en/news/2018/10/17/openssl-x509-name-equality-check-does-not-work-correctly-cve-2018-16395/ (Links to External Site)
Cause:   Access control error
Underlying OS:  Linux (Any), UNIX (Any), Windows (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Nov 29 2018 (Red Hat Issues Fix) Ruby OpenSSL::X509::Name() May Fail to Prevent Remote Users from Bypassing Security Restrictions on the Target System
Red Hat has issued a fix for Red Hat Enterprise Linux 6, 7, 7.4, 7.5, and 7.6.
Nov 29 2018 (Red Hat Issues Fix) Ruby OpenSSL::X509::Name() May Fail to Prevent Remote Users from Bypassing Security Restrictions on the Target System
Red Hat has issued a fix for Red Hat Enterprise Linux 7.
Nov 30 2018 (Oracle Issues Fix for Oracle Linux) Ruby OpenSSL::X509::Name() May Fail to Prevent Remote Users from Bypassing Security Restrictions on the Target System
Oracle has issued a fix for Oracle Linux 7.



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