Bug 1216112 – CVE-2015-3451 perl-XML-LibXML: "expand_entities" option was not preserved under some circumstances

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Bug 1216112 - (CVE-2015-3451) CVE-2015-3451 perl-XML-LibXML: "expand_entities" option was not preserved under some circumstances

Summary:	CVE-2015-3451 perl-XML-LibXML: "expand_entities" option was not preserved und...

Status:	CLOSED WONTFIX

Aliases:	CVE-2015-3451

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	low Severity low
Target Milestone:	---
Target Release:	---
Assigned To:	Red Hat Product Security
QA Contact:
Docs Contact:

URL:
Whiteboard:	impact=low,public=20150423,reported=2...
Keywords:	Security

Depends On:	1216114
Blocks:	1216113
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Reported:	2015-04-28 10:02 EDT by Vasyl Kaigorodov
Modified:	2016-01-21 05:53 EST (History)
CC List:	8 users (show)

See Also:
Fixed In Version:	perl-XML-LibXML 2.0119
Doc Type:	Bug Fix
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2015-08-06 20:01:21 EDT
Type:	---
Regression:	---
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Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

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Description Vasyl Kaigorodov 2015-04-28 10:02:26 EDT

It was reported that perl-XML-LibXML did ignore "expand_entities" option in some circumstances, which could lead to sensitive information disclosure.
Original report and CVE request (reprodcuers are also available):
http://seclists.org/oss-sec/2015/q2/280

Comment 1 Vasyl Kaigorodov 2015-04-28 10:06:14 EDT

Created perl-XML-LibXML tracking bugs for this issue:

Affects: fedora-all [bug 1216114]

Comment 2 Fedora Update System 2015-05-10 19:34:10 EDT

perl-XML-LibXML-2.0119-1.fc21 has been pushed to the Fedora 21 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 3 Kurt Seifried 2015-08-06 20:01:02 EDT

Mitigations:

This issue only affects programs using this program in forms such as:

$parser = XML::LibXML->new

or 

$XML_DOC = $parser->load_xml

if you use the form:

$XML_DOC = XML::LibXML->load_xml

this vulnerability will not be exposed.

Comment 4 Kurt Seifried 2015-08-06 20:01:21 EDT

Statement:

This issue affects the versions of perl-XML-LibXML as shipped with Red Hat Enterprise Linux 5, 6 and 7. Red Hat Product Security has rated this issue as having Low security impact. A future update may address this issue. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.

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