Bug 1397731 (CVE-2015-8978)

Summary: CVE-2015-8978 perl-SOAP-Lite: XML exponential entity expansion denial-of-service
Product: [Other] Security Response Reporter: Andrej Nemec <anemec>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED WONTFIX QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: andrea.veri, bkearney, janfrode, jpazdziora, meissner, perl-devel, perl-maint-list, ppisar, psabata, taw, thomas, tkasparek, tlestach
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: perl-SOAP-Lite 1.15 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2016-12-14 07:15:19 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: 1397732    
Bug Blocks: 1397735    

Description Andrej Nemec 2016-11-23 09:40:57 UTC 
In Soap Lite (aka the SOAP::Lite extension for Perl) 1.14 and earlier,
an example attack consists of defining 10 or more XML entities, each
defined as consisting of 10 of the previous entity, with the document
consisting of a single instance of the largest entity, which expands to
one billion copies of the first entity. The amount of computer memory
used for handling an external SOAP call would likely exceed that
available to the process parsing the XML.

References:

http://cpansearch.perl.org/src/PHRED/SOAP-Lite-1.20/Changes
Comment 1 Andrej Nemec 2016-11-23 09:42:29 UTC 
Created perl-SOAP-Lite tracking bugs for this issue:

Affects: epel-all [bug 1397732]
Comment 2 Andrej Nemec 2016-11-23 09:45:55 UTC 
Upstream bug:

https://github.com/redhotpenguin/soaplite/pull/21

Upstream patch:

https://github.com/redhotpenguin/soaplite/commit/6942fe0d281be1c32c5117605f9c4e8d44f51124
Comment 3 Doran Moppert 2016-12-14 07:09:16 UTC 
Statement:

Red Hat Product Security has rated this issue as having Moderate security
impact. This issue is not currently planned to be addressed in future
updates. For additional information, refer to the Issue Severity
Classification: https://access.redhat.com/security/updates/classification/.