Bug 1879743 (CVE-2019-11777) - CVE-2019-11777 org.eclipse.paho.client.mqttv3: Improper hostname validation in the MQTT library
Summary: CVE-2019-11777 org.eclipse.paho.client.mqttv3: Improper hostname validation i...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2019-11777
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
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Depends On:
Blocks: 1879744
TreeView+ depends on / blocked
 
Reported: 2020-09-16 21:13 UTC by Pedro Sampaio
Modified: 2020-12-16 16:19 UTC (History)
11 users (show)

Fixed In Version: Eclipse Paho Java Client version 1.2.1
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Environment:
Last Closed: 2020-12-16 16:19:26 UTC
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System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2020:5568 0 None None None 2020-12-16 12:15:12 UTC

Description Pedro Sampaio 2020-09-16 21:13:35 UTC 
In the Eclipse Paho Java client library version 1.2.0, when connecting to an MQTT server using TLS and setting a host name verifier, the result of that verification is not checked. This could allow one MQTT server to impersonate another and provide the client library with incorrect information.

Upstream bug:

https://bugs.eclipse.org/bugs/show_bug.cgi?id=549934

Upstream issue:

https://github.com/eclipse/paho.mqtt.java/issues/506

Upstream patch:

https://github.com/CVEProject/cvelist/pull/2537
Comment 2 Ted Jongseok Won 2020-09-17 09:51:06 UTC 
This vulnerability is out of security support scope for the following product:
 * Red Hat JBoss Fuse 6

Please refer to https://access.redhat.com/support/policy/updates/jboss_notes for more details.
Comment 5 errata-xmlrpc 2020-12-16 12:15:40 UTC 
This issue has been addressed in the following products:

  Red Hat Fuse 7.8.0

Via RHSA-2020:5568 https://access.redhat.com/errata/RHSA-2020:5568
Comment 6 Product Security DevOps Team 2020-12-16 16:19:26 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-2019-11777
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