Red Hat Security Advisory: Red Hat JBoss BRMS 6.4.6 security update
🔗 CVE IDs covered (3)
📋 Description
CVE-2017-5645 — log4j: Socket receiver deserialization vulnerability CVE-2017-7957 — XStream: DoS when unmarshalling void type CVE-2019-17571 — log4j: deserialization of untrusted data in SocketServer
🎯 Affected products1
- Red Hat JBoss BRMS 6.4
✅ Remediation
Before applying the update, back up your existing installation, including all applications, configuration files, databases and database settings, and so on. It is recommended to halt the server by stopping the JBoss Application Server process before installing this update; after installing the update, restart the server by starting the JBoss Application Server process. The References section of this erratum contains a download link (you must log in to download the update). Workaround: Please note that the Log4j upstream strongly recommends against using the SerializedLayout with the SocketAppenders. Customers may mitigate this issue by removing the SocketServer class outright; or if they must continue to use SocketAppenders, they can modify their SocketAppender configuration from SerializedLayout to use JsonLayout instead. An example of this in log4j-server.properties might look like this: log4j.appender.file.layout=org.apache.log4j.JsonLayout
🔗 References (7)
- selfhttps://access.redhat.com/errata/RHSA-2017:2888
- externalhttps://access.redhat.com/security/updates/classification/#important
- externalhttps://access.redhat.com/jbossnetwork/restricted/listSoftware.html?product=brms&downloadType=securityPatches&version=6.4
- externalhttps://access.redhat.com/documentation/en/red-hat-jboss-brms/
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=1441538
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=1443635
- selfhttps://security.access.redhat.com/data/csaf/v2/advisories/2017/rhsa-2017_2888.json