Bug 894383 (CVE-2013-0175)

Summary: CVE-2013-0175 rubygem-multi_xml: Security flaw in Symbol and YAML parameters parsing
Product: [Other] Security Response Reporter: Jan Lieskovsky <jlieskov>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: urgent Docs Contact:
Priority: urgent    
Version: unspecifiedCC: bkabrda, bressers, mastahnke, vondruch
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard: impact=critical,public=20130110,reported=20130111,source=oss-security,cvss2=7.5/AV:N/AC:L/Au:N/C:P/I:P/A:P,fedora-17/rubygem-multi_xml=affected,cwe=CWE-502
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2014-05-30 14:48:48 EDT Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---
Bug Depends On: 894385    
Bug Blocks:    

Description Jan Lieskovsky 2013-01-11 10:51:18 EST
A security flaw was found in the way multi_xml gem, a Ruby gem to provide swappable XML backends utilizing LibXML, Nokogiri, Ox, or REXML, performed Symbol and YAML parameters parsing. A remote attacker could use this flaw to execute arbitrary code with the privileges of the Ruby on Rails application using the multi_xml gem via specially-crafted HTTP POST request.

References:
[1] https://news.ycombinator.com/item?id=5040457
[2] https://gist.github.com/d7f6d9f4925f413621aa
[3] https://github.com/sferik/multi_xml/pull/34
[4] http://www.openwall.com/lists/oss-security/2013/01/11/2
[5] http://www.openwall.com/lists/oss-security/2013/01/11/7
[6] https://rubygems.org/gems/multi_xml/versions/0.5.2
Comment 1 Jan Lieskovsky 2013-01-11 10:52:47 EST
This issue affects the version of the rubygem-multi_xml package, as shipped with Fedora release of 17. Please schedule an update.
Comment 2 Jan Lieskovsky 2013-01-11 10:53:27 EST
Created rubygem-multi_xml tracking bugs for this issue

Affects: fedora-17 [bug 894385]
Comment 3 Fedora Update System 2013-01-24 17:37:16 EST
rubygem-multi_xml-0.4.1-5.fc18 has been pushed to the Fedora 18 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 4 Fedora Update System 2013-01-25 16:43:02 EST
rubygem-multi_xml-0.4.1-4.fc17 has been pushed to the Fedora 17 stable repository.  If problems still persist, please make note of it in this bug report.