Bug 1709860 (CVE-2019-5427)

Summary:	CVE-2019-5427 c3p0: loading XML configuration leads to denial of service
Product:	[Other] Security Response	Reporter:	msiddiqu
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	aileenc, akoufoud, alazarot, almorale, anstephe, avibelli, bbuckingham, bcourt, bgeorges, bkearney, btotty, cbyrne, chazlett, cmacedo, csutherl, decathorpe, dffrench, dingyichen, drusso, etirelli, gvarsami, gzaronik, hhudgeon, ibek, janstey, java-sig-commits, jbalunas, jclere, jcoleman, jmadigan, jochrist, jpallich, jshepherd, kconner, krathod, kverlaen, ldimaggi, lef, lgao, lthon, lzap, mbabacek, mhulan, mmccune, mnovotny, mszynkie, myarboro, ngough, nwallace, paradhya, pgallagh, pwright, rchan, rjerrido, rrajasek, rruss, rsynek, rwagner, sdaley, sisharma, stewardship-sig, tcunning, tkirby, tlestach, trepel, twalsh, vbellur, weli
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	c3p0 0.9.5.4	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2020-03-26 16:32:11 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:	1709862, 1709861
Bug Blocks:	1709863

Description msiddiqu 2019-05-14 12:36:22 UTC

c3p0 version < 0.9.5.4 may be exploited by a billion laughs attack when loading XML configuration due to missing protections against recursive entity expansion when loading configuration.

References:  

https://hackerone.com/reports/509315
http://www.cvedetails.com/cve/CVE-2019-5427/ 

Upstream commit:

https://github.com/swaldman/c3p0/commit/f38f27635c384806c2a9d6500d80183d9f09d78b

Comment 1 msiddiqu 2019-05-14 12:36:44 UTC

Created c3p0 tracking bugs for this issue:

Affects: epel-7 [bug 1709862]
Affects: fedora-all [bug 1709861]

Comment 2 Joshua Padman 2019-05-15 23:07:43 UTC

This vulnerability is out of security support scope for the following products:
 * Red Hat JBoss Fuse 6
 * Red Hat JBoss SOA Platform 5
 * Red Hat JBoss BPM Suite 6

Please refer to https://access.redhat.com/support/policy/updates/jboss_notes for more details.

Comment 3 Cedric Buissart 2019-05-17 11:47:54 UTC

In Satellite 5 context : setting severity to Low, because the attack requires c3p0 to be provided with a specially crafted XML configuration file. This should not happen unless the Satellite is already severely compromised.

Comment 4 Doran Moppert 2019-07-01 05:23:49 UTC

Statement:

Red Hat Satellite 6 is not vulnerable to this issue, because the candlepin component who uses the c3p0 jar never passes a XML configuration file to c3p0, even though it includes a vulnerable version of the latter. Since this issue requires a XML files to be loaded by c3p0, an exploitation path doesn't exist.

Comment 5 Jason Shepherd 2019-08-08 05:49:32 UTC

This vulnerability is out of security support scope for the following product:

 * Red Hat Mobile Application Platform

 Please refer to https://access.redhat.com/support/policy/updates/rhmap for more details

Comment 6 Joshua Padman 2019-08-12 02:17:50 UTC

This vulnerability is out of security support scope for the following product:
 * Red Hat JBoss Enterprise Web Server 2

Please refer to https://access.redhat.com/support/policy/updates/jboss_notes for more details.

Comment 10 errata-xmlrpc 2020-03-26 15:47:31 UTC

This issue has been addressed in the following products:

  Red Hat Fuse 7.6.0

Via RHSA-2020:0983 https://access.redhat.com/errata/RHSA-2020:0983

Comment 11 Product Security DevOps Team 2020-03-26 16:32:11 UTC

This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2019-5427