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:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	urgent	Docs Contact:
Priority:	urgent
Version:	unspecified	CC:	bkabrda, bressers, mastahnke, vondruch
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2014-05-30 18:48:48 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	894385
Bug Blocks:

Description Jan Lieskovsky 2013-01-11 15:51:18 UTC

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 15:52:47 UTC

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 15:53:27 UTC

Created rubygem-multi_xml tracking bugs for this issue

Affects: fedora-17 [bug 894385]

Comment 3 Fedora Update System 2013-01-24 22:37:16 UTC

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 21:43:02 UTC

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.