CVE-2018-14642: Infoleak

Published Sep 13, 2018
·
Updated

An information leak vulnerability was found in Undertow. If all headers are not written out in the first write() call then the code that handles flushing the buffer will always write out the full contents of the writevBuffer buffer, which may contain data from previous requests.

Other sources

In some circumstances Undertow can serve data from a random ByteBuffer, this is due to an incomplete fix for UNDERTOW-438.

Basically if all the headers are not written out in the first write() call then the code that handles flushing the buffer will always write out the full contents of the writevBuffer buffer, which may contain data from previous requests.

Upstream bug:

https://issues.jboss.org/browse/JBEAP-15428

Upstream patch:

https://github.com/jbossas/redhat-undertow/commit/e65ad5b410f95b166ff04f876e22f873e9b4ce62

— Red Hat

Affected Software

131 affected componentsFixes available
redhat/eap7-activemq-artemis<0:1.5.5.015-1.redhat_00001.1.ep7.el6
0:1.5.5.015-1.redhat_00001.1.ep7.el6
redhat/eap7-apache-cxf<0:3.1.16-2.redhat_2.1.ep7.el6
0:3.1.16-2.redhat_2.1.ep7.el6
redhat/eap7-dom4j<0:2.1.1-1.redhat_00001.1.ep7.el6
0:2.1.1-1.redhat_00001.1.ep7.el6
redhat/eap7-hibernate<0:5.1.17-1.Final_redhat_00001.1.ep7.el6
0:5.1.17-1.Final_redhat_00001.1.ep7.el6
redhat/eap7-ironjacamar<0:1.4.12-1.Final_redhat_00001.1.ep7.el6
0:1.4.12-1.Final_redhat_00001.1.ep7.el6
redhat/eap7-jackson-databind<0:2.8.11.3-1.redhat_00001.1.ep7.el6
0:2.8.11.3-1.redhat_00001.1.ep7.el6
redhat/eap7-jandex<0:2.0.5-1.Final_redhat_1.1.ep7.el6
0:2.0.5-1.Final_redhat_1.1.ep7.el6
redhat/eap7-jberet<0:1.2.7-1.Final_redhat_00001.1.ep7.el6
0:1.2.7-1.Final_redhat_00001.1.ep7.el6
redhat/eap7-jboss-ejb-client<0:4.0.12-1.Final_redhat_00001.1.ep7.el6
0:4.0.12-1.Final_redhat_00001.1.ep7.el6
redhat/eap7-jboss-logmanager<0:2.0.11-1.Final_redhat_00001.1.ep7.el6
0:2.0.11-1.Final_redhat_00001.1.ep7.el6
redhat/eap7-jboss-modules<0:1.6.7-1.Final_redhat_00001.1.ep7.el6
0:1.6.7-1.Final_redhat_00001.1.ep7.el6
redhat/eap7-jboss-security-negotiation<0:3.0.5-1.Final_redhat_00001.1.ep7.el6
0:3.0.5-1.Final_redhat_00001.1.ep7.el6
redhat/eap7-jbossws-common<0:3.1.7-1.Final_redhat_00001.1.ep7.el6
0:3.1.7-1.Final_redhat_00001.1.ep7.el6
redhat/eap7-narayana<0:5.5.34-1.Final_redhat_00001.1.ep7.el6
0:5.5.34-1.Final_redhat_00001.1.ep7.el6
redhat/eap7-picketlink-bindings<0:2.5.5-15.SP12_redhat_3.1.ep7.el6
0:2.5.5-15.SP12_redhat_3.1.ep7.el6
redhat/eap7-picketlink-federation<0:2.5.5-15.SP12_redhat_3.1.ep7.el6
0:2.5.5-15.SP12_redhat_3.1.ep7.el6
redhat/eap7-undertow<0:1.4.18-10.SP11_redhat_00001.1.ep7.el6
0:1.4.18-10.SP11_redhat_00001.1.ep7.el6
redhat/eap7-undertow-jastow<0:2.0.7-1.Final_redhat_00001.1.ep7.el6
0:2.0.7-1.Final_redhat_00001.1.ep7.el6
redhat/eap7-wildfly<0:7.1.6-4.GA_redhat_00002.1.ep7.el6
0:7.1.6-4.GA_redhat_00002.1.ep7.el6
redhat/eap7-wildfly-common<0:1.2.1-1.Final_redhat_00001.1.ep7.el6
0:1.2.1-1.Final_redhat_00001.1.ep7.el6
redhat/eap7-wildfly-elytron<0:1.1.12-1.Final_redhat_00001.1.ep7.el6
0:1.1.12-1.Final_redhat_00001.1.ep7.el6
redhat/eap7-wildfly-elytron-tool<0:1.0.9-1.Final_redhat_00001.1.ep7.el6
0:1.0.9-1.Final_redhat_00001.1.ep7.el6
redhat/eap7-wildfly-javadocs<0:7.1.6-2.GA_redhat_00002.1.ep7.el6
0:7.1.6-2.GA_redhat_00002.1.ep7.el6
redhat/eap7-wildfly-web-console-eap<0:2.9.19-1.Final_redhat_00001.1.ep7.el6
0:2.9.19-1.Final_redhat_00001.1.ep7.el6
redhat/eap7-activemq-artemis<0:1.5.5.015-1.redhat_00001.1.ep7.el7
0:1.5.5.015-1.redhat_00001.1.ep7.el7
redhat/eap7-apache-cxf<0:3.1.16-2.redhat_2.1.ep7.el7
0:3.1.16-2.redhat_2.1.ep7.el7
redhat/eap7-dom4j<0:2.1.1-1.redhat_00001.1.ep7.el7
0:2.1.1-1.redhat_00001.1.ep7.el7
redhat/eap7-hibernate<0:5.1.17-1.Final_redhat_00001.1.ep7.el7
0:5.1.17-1.Final_redhat_00001.1.ep7.el7
redhat/eap7-ironjacamar<0:1.4.12-1.Final_redhat_00001.1.ep7.el7
0:1.4.12-1.Final_redhat_00001.1.ep7.el7
redhat/eap7-jackson-databind<0:2.8.11.3-1.redhat_00001.1.ep7.el7
0:2.8.11.3-1.redhat_00001.1.ep7.el7
redhat/eap7-jandex<0:2.0.5-1.Final_redhat_1.1.ep7.el7
0:2.0.5-1.Final_redhat_1.1.ep7.el7
redhat/eap7-jberet<0:1.2.7-1.Final_redhat_00001.1.ep7.el7
0:1.2.7-1.Final_redhat_00001.1.ep7.el7
redhat/eap7-jboss-ejb-client<0:4.0.12-1.Final_redhat_00001.1.ep7.el7
0:4.0.12-1.Final_redhat_00001.1.ep7.el7
redhat/eap7-jboss-logmanager<0:2.0.11-1.Final_redhat_00001.1.ep7.el7
0:2.0.11-1.Final_redhat_00001.1.ep7.el7
redhat/eap7-jboss-modules<0:1.6.7-1.Final_redhat_00001.1.ep7.el7
0:1.6.7-1.Final_redhat_00001.1.ep7.el7
redhat/eap7-jboss-security-negotiation<0:3.0.5-1.Final_redhat_00001.1.ep7.el7
0:3.0.5-1.Final_redhat_00001.1.ep7.el7
redhat/eap7-jbossws-common<0:3.1.7-1.Final_redhat_00001.1.ep7.el7
0:3.1.7-1.Final_redhat_00001.1.ep7.el7
redhat/eap7-narayana<0:5.5.34-1.Final_redhat_00001.1.ep7.el7
0:5.5.34-1.Final_redhat_00001.1.ep7.el7
redhat/eap7-picketlink-bindings<0:2.5.5-15.SP12_redhat_3.1.ep7.el7
0:2.5.5-15.SP12_redhat_3.1.ep7.el7
redhat/eap7-picketlink-federation<0:2.5.5-15.SP12_redhat_3.1.ep7.el7
0:2.5.5-15.SP12_redhat_3.1.ep7.el7
redhat/eap7-undertow<0:1.4.18-10.SP11_redhat_00001.1.ep7.el7
0:1.4.18-10.SP11_redhat_00001.1.ep7.el7
redhat/eap7-undertow-jastow<0:2.0.7-1.Final_redhat_00001.1.ep7.el7
0:2.0.7-1.Final_redhat_00001.1.ep7.el7
redhat/eap7-wildfly<0:7.1.6-4.GA_redhat_00002.1.ep7.el7
0:7.1.6-4.GA_redhat_00002.1.ep7.el7
redhat/eap7-wildfly-common<0:1.2.1-1.Final_redhat_00001.1.ep7.el7
0:1.2.1-1.Final_redhat_00001.1.ep7.el7
redhat/eap7-wildfly-elytron<0:1.1.12-1.Final_redhat_00001.1.ep7.el7
0:1.1.12-1.Final_redhat_00001.1.ep7.el7
redhat/eap7-wildfly-elytron-tool<0:1.0.9-1.Final_redhat_00001.1.ep7.el7
0:1.0.9-1.Final_redhat_00001.1.ep7.el7
redhat/eap7-wildfly-javadocs<0:7.1.6-2.GA_redhat_00002.1.ep7.el7
0:7.1.6-2.GA_redhat_00002.1.ep7.el7
redhat/eap7-wildfly-web-console-eap<0:2.9.19-1.Final_redhat_00001.1.ep7.el7
0:2.9.19-1.Final_redhat_00001.1.ep7.el7
redhat/eap7-activemq-artemis<0:2.6.3-5.redhat_00020.1.el6ea
0:2.6.3-5.redhat_00020.1.el6ea
redhat/eap7-apache-commons-lang<0:3.8.0-1.redhat_00001.1.el6ea
0:3.8.0-1.redhat_00001.1.el6ea
redhat/eap7-apache-cxf<0:3.2.7-1.redhat_00001.1.el6ea
0:3.2.7-1.redhat_00001.1.el6ea
redhat/eap7-apache-cxf-xjc-utils<0:3.2.3-2.redhat_00002.1.el6ea
0:3.2.3-2.redhat_00002.1.el6ea
redhat/eap7-artemis-native<0:2.6.3-15.redhat_00020.el6ea
0:2.6.3-15.redhat_00020.el6ea
redhat/eap7-byte-buddy<0:1.9.5-1.redhat_00001.1.el6ea
0:1.9.5-1.redhat_00001.1.el6ea
redhat/eap7-dom4j<0:2.1.1-2.redhat_00001.1.el6ea
0:2.1.1-2.redhat_00001.1.el6ea
redhat/eap7-elytron-web<0:1.2.4-1.Final_redhat_00001.1.el6ea
0:1.2.4-1.Final_redhat_00001.1.el6ea
redhat/eap7-hibernate<0:5.3.9-2.Final_redhat_00002.1.el6ea
0:5.3.9-2.Final_redhat_00002.1.el6ea
redhat/eap7-httpcomponents-asyncclient<0:4.1.4-1.redhat_00001.1.el6ea
0:4.1.4-1.redhat_00001.1.el6ea
redhat/eap7-infinispan<0:9.3.6-1.Final_redhat_00001.1.el6ea
0:9.3.6-1.Final_redhat_00001.1.el6ea
redhat/eap7-ironjacamar<0:1.4.15-1.Final_redhat_00001.1.el6ea
0:1.4.15-1.Final_redhat_00001.1.el6ea
redhat/eap7-jackson-annotations<0:2.9.8-2.redhat_00004.1.el6ea
0:2.9.8-2.redhat_00004.1.el6ea
redhat/eap7-jackson-core<0:2.9.8-2.redhat_00004.1.el6ea
0:2.9.8-2.redhat_00004.1.el6ea
redhat/eap7-jackson-databind<0:2.9.8-2.redhat_00004.1.el6ea
0:2.9.8-2.redhat_00004.1.el6ea
redhat/eap7-jackson-jaxrs-providers<0:2.9.8-2.redhat_00004.1.el6ea
0:2.9.8-2.redhat_00004.1.el6ea
redhat/eap7-jackson-modules-base<0:2.9.8-1.redhat_00004.1.el6ea
0:2.9.8-1.redhat_00004.1.el6ea
redhat/eap7-jackson-modules-java8<0:2.9.8-1.redhat_00004.1.el6ea
0:2.9.8-1.redhat_00004.1.el6ea
redhat/eap7-jberet<0:1.3.2-1.Final_redhat_00001.1.el6ea
0:1.3.2-1.Final_redhat_00001.1.el6ea
redhat/eap7-jboss-ejb-client<0:4.0.15-1.Final_redhat_00001.1.el6ea
0:4.0.15-1.Final_redhat_00001.1.el6ea
redhat/eap7-jboss-genericjms<0:2.0.1-2.Final_redhat_00002.1.el6ea
0:2.0.1-2.Final_redhat_00002.1.el6ea
redhat/eap7-jboss-logmanager<0:2.1.7-3.Final_redhat_00001.1.el6ea
0:2.1.7-3.Final_redhat_00001.1.el6ea
redhat/eap7-jboss-remoting-jmx<0:3.0.1-1.Final_redhat_00001.1.el6ea
0:3.0.1-1.Final_redhat_00001.1.el6ea
redhat/eap7-jboss-security-negotiation<0:3.0.5-2.Final_redhat_00001.1.el6ea
0:3.0.5-2.Final_redhat_00001.1.el6ea
redhat/eap7-jboss-server-migration<0:1.3.0-7.Final_redhat_00004.1.el6ea
0:1.3.0-7.Final_redhat_00004.1.el6ea
redhat/eap7-narayana<0:5.9.1-1.Final_redhat_00001.1.el6ea
0:5.9.1-1.Final_redhat_00001.1.el6ea
redhat/eap7-picketlink-bindings<0:2.5.5-16.SP12_redhat_4.1.el6ea
0:2.5.5-16.SP12_redhat_4.1.el6ea
redhat/eap7-picketlink-federation<0:2.5.5-16.SP12_redhat_4.1.el6ea
0:2.5.5-16.SP12_redhat_4.1.el6ea
redhat/eap7-resteasy<0:3.6.1-4.SP3_redhat_00001.1.el6ea
0:3.6.1-4.SP3_redhat_00001.1.el6ea
redhat/eap7-sun-istack-commons<0:3.0.7-2.redhat_00001.1.el6ea
0:3.0.7-2.redhat_00001.1.el6ea
redhat/eap7-undertow<0:2.0.19-1.Final_redhat_00001.1.el6ea
0:2.0.19-1.Final_redhat_00001.1.el6ea
redhat/eap7-undertow-jastow<0:2.0.7-2.Final_redhat_00001.1.el6ea
0:2.0.7-2.Final_redhat_00001.1.el6ea
redhat/eap7-wildfly<0:7.2.1-6.GA_redhat_00004.1.el6ea
0:7.2.1-6.GA_redhat_00004.1.el6ea
redhat/eap7-wildfly-elytron<0:1.6.2-1.Final_redhat_00001.1.el6ea
0:1.6.2-1.Final_redhat_00001.1.el6ea
redhat/eap7-wildfly-elytron-tool<0:1.4.1-1.Final_redhat_00001.1.el6ea
0:1.4.1-1.Final_redhat_00001.1.el6ea
redhat/eap7-wildfly-http-client<0:1.0.13-1.Final_redhat_00001.1.el6ea
0:1.0.13-1.Final_redhat_00001.1.el6ea
redhat/eap7-wildfly-transaction-client<0:1.1.3-1.Final_redhat_00001.1.el6ea
0:1.1.3-1.Final_redhat_00001.1.el6ea
redhat/eap7-yasson<0:1.0.2-1.redhat_00001.1.el6ea
0:1.0.2-1.redhat_00001.1.el6ea
redhat/eap7-activemq-artemis<0:2.6.3-5.redhat_00020.1.el7ea
0:2.6.3-5.redhat_00020.1.el7ea
redhat/eap7-apache-commons-lang<0:3.8.0-1.redhat_00001.1.el7ea
0:3.8.0-1.redhat_00001.1.el7ea
redhat/eap7-apache-cxf<0:3.2.7-1.redhat_00001.1.el7ea
0:3.2.7-1.redhat_00001.1.el7ea
redhat/eap7-apache-cxf-xjc-utils<0:3.2.3-2.redhat_00002.1.el7ea
0:3.2.3-2.redhat_00002.1.el7ea
redhat/eap7-artemis-native<0:2.6.3-15.redhat_00020.el7ea
0:2.6.3-15.redhat_00020.el7ea
redhat/eap7-byte-buddy<0:1.9.5-1.redhat_00001.1.el7ea
0:1.9.5-1.redhat_00001.1.el7ea
redhat/eap7-dom4j<0:2.1.1-2.redhat_00001.1.el7ea
0:2.1.1-2.redhat_00001.1.el7ea
redhat/eap7-elytron-web<0:1.2.4-1.Final_redhat_00001.1.el7ea
0:1.2.4-1.Final_redhat_00001.1.el7ea
redhat/eap7-hibernate<0:5.3.9-2.Final_redhat_00002.1.el7ea
0:5.3.9-2.Final_redhat_00002.1.el7ea
redhat/eap7-httpcomponents-asyncclient<0:4.1.4-1.redhat_00001.1.el7ea
0:4.1.4-1.redhat_00001.1.el7ea
redhat/eap7-infinispan<0:9.3.6-1.Final_redhat_00001.1.el7ea
0:9.3.6-1.Final_redhat_00001.1.el7ea
redhat/eap7-ironjacamar<0:1.4.15-1.Final_redhat_00001.1.el7ea
0:1.4.15-1.Final_redhat_00001.1.el7ea
redhat/eap7-jackson-annotations<0:2.9.8-2.redhat_00004.1.el7ea
0:2.9.8-2.redhat_00004.1.el7ea
redhat/eap7-jackson-core<0:2.9.8-2.redhat_00004.1.el7ea
0:2.9.8-2.redhat_00004.1.el7ea
redhat/eap7-jackson-databind<0:2.9.8-2.redhat_00004.1.el7ea
0:2.9.8-2.redhat_00004.1.el7ea
redhat/eap7-jackson-jaxrs-providers<0:2.9.8-2.redhat_00004.1.el7ea
0:2.9.8-2.redhat_00004.1.el7ea
redhat/eap7-jackson-modules-base<0:2.9.8-1.redhat_00004.1.el7ea
0:2.9.8-1.redhat_00004.1.el7ea
redhat/eap7-jackson-modules-java8<0:2.9.8-1.redhat_00004.1.el7ea
0:2.9.8-1.redhat_00004.1.el7ea
redhat/eap7-jberet<0:1.3.2-1.Final_redhat_00001.1.el7ea
0:1.3.2-1.Final_redhat_00001.1.el7ea
redhat/eap7-jboss-ejb-client<0:4.0.15-1.Final_redhat_00001.1.el7ea
0:4.0.15-1.Final_redhat_00001.1.el7ea
redhat/eap7-jboss-genericjms<0:2.0.1-2.Final_redhat_00002.1.el7ea
0:2.0.1-2.Final_redhat_00002.1.el7ea
redhat/eap7-jboss-logmanager<0:2.1.7-3.Final_redhat_00001.1.el7ea
0:2.1.7-3.Final_redhat_00001.1.el7ea
redhat/eap7-jboss-remoting-jmx<0:3.0.1-1.Final_redhat_00001.1.el7ea
0:3.0.1-1.Final_redhat_00001.1.el7ea
redhat/eap7-jboss-security-negotiation<0:3.0.5-2.Final_redhat_00001.1.el7ea
0:3.0.5-2.Final_redhat_00001.1.el7ea
redhat/eap7-jboss-server-migration<0:1.3.0-7.Final_redhat_00004.1.el7ea
0:1.3.0-7.Final_redhat_00004.1.el7ea
redhat/eap7-narayana<0:5.9.1-1.Final_redhat_00001.1.el7ea
0:5.9.1-1.Final_redhat_00001.1.el7ea
redhat/eap7-picketlink-bindings<0:2.5.5-16.SP12_redhat_4.1.el7ea
0:2.5.5-16.SP12_redhat_4.1.el7ea
redhat/eap7-picketlink-federation<0:2.5.5-16.SP12_redhat_4.1.el7ea
0:2.5.5-16.SP12_redhat_4.1.el7ea
redhat/eap7-resteasy<0:3.6.1-4.SP3_redhat_00001.1.el7ea
0:3.6.1-4.SP3_redhat_00001.1.el7ea
redhat/eap7-sun-istack-commons<0:3.0.7-2.redhat_00001.1.el7ea
0:3.0.7-2.redhat_00001.1.el7ea
redhat/eap7-undertow<0:2.0.19-1.Final_redhat_00001.1.el7ea
0:2.0.19-1.Final_redhat_00001.1.el7ea
redhat/eap7-undertow-jastow<0:2.0.7-2.Final_redhat_00001.1.el7ea
0:2.0.7-2.Final_redhat_00001.1.el7ea
redhat/eap7-wildfly<0:7.2.1-6.GA_redhat_00004.1.el7ea
0:7.2.1-6.GA_redhat_00004.1.el7ea
redhat/eap7-wildfly-elytron<0:1.6.2-1.Final_redhat_00001.1.el7ea
0:1.6.2-1.Final_redhat_00001.1.el7ea
redhat/eap7-wildfly-elytron-tool<0:1.4.1-1.Final_redhat_00001.1.el7ea
0:1.4.1-1.Final_redhat_00001.1.el7ea
redhat/eap7-wildfly-http-client<0:1.0.13-1.Final_redhat_00001.1.el7ea
0:1.0.13-1.Final_redhat_00001.1.el7ea
redhat/eap7-wildfly-transaction-client<0:1.1.3-1.Final_redhat_00001.1.el7ea
0:1.1.3-1.Final_redhat_00001.1.el7ea
redhat/eap7-yasson<0:1.0.2-1.redhat_00001.1.el7ea
0:1.0.2-1.redhat_00001.1.el7ea
redhat/rhvm-appliance<0:4.3-20190502.0.el7
0:4.3-20190502.0.el7
redhat undertow
redhat JBoss Enterprise Application Platform=7.1
redhat JBoss Enterprise Application Platform=7.2
redhat JBoss Enterprise Application Platform=7.3
redhat Enterprise Linux=6.0
redhat Enterprise Linux=7.0

Remediation

Patch Available

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14642

Event History

Sep 13, 2018
Data Sourced
via Red Hat·06:24 PM
DescriptionSeverityAffected Software
Sep 14, 2018
CVE Published
12:00 AM
Sep 18, 2018
CVE Published
via MITRE·01:00 PM
Data Sourced
via MITRE·01:00 PM
DescriptionSeverityWeakness

Parent advisories

This vulnerability appears in the following advisories.

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Frequently Asked Questions

1

What is the severity of CVE-2018-14642?

CVE-2018-14642 has been classified as a moderate severity vulnerability.

2

How do I fix CVE-2018-14642?

To remediate CVE-2018-14642, users need to update to the specified versions of impacted packages listed by Red Hat.

3

Which software versions are affected by CVE-2018-14642?

CVE-2018-14642 affects various versions of packages including Undertow and others in the Red Hat JBoss Enterprise Application Platform.

4

Is CVE-2018-14642 an information leak?

Yes, CVE-2018-14642 is an information leak vulnerability found in Undertow.

5

What can be compromised due to CVE-2018-14642?

CVE-2018-14642 can potentially expose sensitive data from previous requests due to improper buffer handling.

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