Bug 1758182 (CVE-2019-14893)

Summary: CVE-2019-14893 jackson-databind: Serialization gadgets in classes of the xalan package
Product: [Other] Security Response Reporter: Pedro Sampaio <psampaio>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: aboyko, aileenc, akoufoud, alazarot, almorale, anstephe, asoldano, atangrin, ataylor, avibelli, bbaranow, bbuckingham, bcourt, bgeorges, bkearney, bmaxwell, bmontgom, brian.stansberry, btotty, cbyrne, cdewolf, chazlett, cmacedo, darran.lofthouse, dbecker, decathorpe, dffrench, dkreling, dosoudil, drieden, drusso, eparis, etirelli, ganandan, ggaughan, hhorak, hhudgeon, ibek, iweiss, janstey, java-sig-commits, jawilson, jbalunas, jburrell, jjoyce, jmadigan, jochrist, jokerman, jolee, jorton, jpallich, jperkins, jschatte, jschluet, jshepherd, jstastny, kbasil, krathod, kverlaen, kwills, lef, lgao, lhh, lpeer, lthon, lzap, mburns, mkolesni, mmccune, mnovotny, msochure, msvehla, mszynkie, ngough, nstielau, nwallace, paradhya, pdrozd, pgallagh, pmackay, psotirop, puntogil, pwright, rchan, rguimara, rhcs-maint, rjerrido, rrajasek, rruss, rsvoboda, rsynek, sclewis, scohen, sdaley, slinaber, smaestri, sponnaga, stewardship-sig, sthorger, swoodman, tbrisker, tom.jenkinson, trepel, twalsh, vhalbert
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Fixed In Version: jackson-databind 2.9.10, jackson-databind 2.10.0 Doc Type: If docs needed, set a value
Doc Text:
A flaw was discovered in FasterXML jackson-databind, where it would permit polymorphic deserialization of malicious objects using the xalan JNDI gadget when used in conjunction with polymorphic type handling methods such as `enableDefaultTyping()` or when @JsonTypeInfo is using `Id.CLASS` or `Id.MINIMAL_CLASS` or in any other way which ObjectMapper.readValue might instantiate objects from unsafe sources. An attacker could use this flaw to execute arbitrary code.
Story Points: ---
Clone Of: Environment:
Last Closed: 2020-01-21 08:09:52 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Bug Depends On: 1762572, 1758183, 1762564, 1762566, 1762567, 1762568, 1762569, 1762570, 1762571, 1765100, 1765101, 1781719    
Bug Blocks: 1758184    

Description Pedro Sampaio 2019-10-03 13:40:32 UTC
A flaw was found in jackson-databind before 2.9.10. New serialization gadgets were found regarding a class of the xalan package which may help in exploiting deserialization issues.

Upstream issue:


Upstream patch:




Comment 1 Pedro Sampaio 2019-10-03 13:41:53 UTC
Created jackson-databind tracking bugs for this issue:

Affects: fedora-all [bug 1758183]

Comment 5 Anten Skrabec 2019-10-18 21:36:04 UTC

Satellite 6 does not enable polymorphic unmarshmalling, which is a required configuration for the vulnerability to be used. We may update the jackson-databind dependency in a future release.

Red Hat OpenStack Platform ships OpenDaylight, which contains the vulnerable jackson-databind. However, OpenDaylight does not expose jackson-databind in a way that would make it vulnerable, lowering the impact of the vulnerability for OpenDaylight. As such, Red Hat will not be providing a fix for OpenDaylight at this time.

Comment 13 Kunjan Rathod 2019-12-06 00:28:14 UTC
This vulnerability is out of security support scope for the following products:
 * Red Hat JBoss BPMS 6
 * Red Hat JBoss Data Virtualization & Services 6

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

Comment 16 Paramvir jindal 2019-12-17 09:12:01 UTC
Marking JDG as affected fix because the fix version seems to be jackson-databind 2.9.10 and JDG 7.3.4 (latest as of today) ships jackson-databind- :


Comment 18 errata-xmlrpc 2020-01-21 02:23:55 UTC
This issue has been addressed in the following products:

  Red Hat JBoss Enterprise Application Platform

Via RHSA-2020:0164 https://access.redhat.com/errata/RHSA-2020:0164

Comment 19 errata-xmlrpc 2020-01-21 02:56:26 UTC
This issue has been addressed in the following products:

  Red Hat JBoss Enterprise Application Platform 7.2 for RHEL 6

Via RHSA-2020:0159 https://access.redhat.com/errata/RHSA-2020:0159

Comment 20 errata-xmlrpc 2020-01-21 03:21:47 UTC
This issue has been addressed in the following products:

  Red Hat JBoss Enterprise Application Platform 7.2 for RHEL 8

Via RHSA-2020:0161 https://access.redhat.com/errata/RHSA-2020:0161

Comment 21 errata-xmlrpc 2020-01-21 03:46:35 UTC
This issue has been addressed in the following products:

  Red Hat JBoss Enterprise Application Platform 7.2 for RHEL 7

Via RHSA-2020:0160 https://access.redhat.com/errata/RHSA-2020:0160

Comment 22 Product Security DevOps Team 2020-01-21 08:09:52 UTC
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):


Comment 23 errata-xmlrpc 2020-02-06 08:35:46 UTC
This issue has been addressed in the following products:

  Red Hat Single Sign-On

Via RHSA-2020:0445 https://access.redhat.com/errata/RHSA-2020:0445

Comment 24 Jonathan Christison 2020-02-28 14:32:48 UTC

The following conditions are needed for an exploit, we recommend avoiding all if possible
* Deserialization from sources you do not control
* `enableDefaultTyping()`
* `@JsonTypeInfo using `id.CLASS` or `id.MINIMAL_CLASS`