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Category:   Application (Generic)  >   Ruby Vendors:   Matsumoto, Yukihiro
Ruby REXML Unrestricted Entity Expansion Lets Remote Users Deny Service
SecurityTracker Alert ID:  1031166
SecurityTracker URL:  http://securitytracker.com/id/1031166
CVE Reference:   CVE-2014-8080, CVE-2014-8090   (Links to External Site)
Updated:  Nov 27 2014
Original Entry Date:  Nov 4 2014
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 1.9.x prior to 1.9.3 patchlevel 551; 2.0.x prior to 2.0.0 patchlevel 598; 2.1.x prior to 2.1.5
Description:   A vulnerability was reported in Ruby. A remote user can cause denial of service conditions.

A remote user can supply a specially crafted XML document to cause the REXML parser to allocate large string objects and consume all available memory on the target system.

Willis Vandevanter reported this vulnerability.

Impact:   A remote user can cause excessive memory consumption on the target system.
Solution:   The vendor issued a fix (1.9.3 patchlevel 550, 2.0.0 patchlevel 594, 2.1.4) on November 4, 2014 [CVE-2014-8080].

The original fix was incomplete. The vendor issued a revised fix (1.9.3 patchlevel 551, 2.0.0 patchlevel 598, 2.1.5) on November 13, 2014 [CVE-2014-8090]. Tomas Hoger reported this vulnerability.

The vendor's advisories are available at:

https://www.ruby-lang.org/en/news/2014/10/27/rexml-dos-cve-2014-8080/
https://www.ruby-lang.org/en/news/2014/11/13/rexml-dos-cve-2014-8090/

Vendor URL:  www.ruby-lang.org/en/news/2014/11/13/rexml-dos-cve-2014-8090/ (Links to External Site)
Cause:   Resource 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 27 2014 (Red Hat Issues Fix) Ruby REXML Unrestricted Entity Expansion Lets Remote Users Deny Service
Red Hat has issued a fix for Red Hat Enterprise Linux 6, 6.4, 6.5, 6.6, and 7.
Oct 1 2015 (Apple Issues Fix for Apple OS X) Ruby REXML Unrestricted Entity Expansion Lets Remote Users Deny Service
Apple has issued a fix for Apple OS X.



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