A bug in the UTF-8 decoder can lead to DoS
CVE: CVE-2018-1336
Component: tomcat
Severity: Important
CVSS v3: 7.5/CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Release date: 2018-07-22T00:00:00+00:00

An improper handing of overflow in the UTF-8 decoder with supplementary characters can lead to an infinite loop in the decoder causing a Denial of Service. Versions Affected: Apache Tomcat 9.0.0.M9 to 9.0.7, 8.5.0 to 8.5.30, 8.0.0.RC1 to 8.0.51, and 7.0.28 to 7.0.86.

Statement: Fuse 6.3 and 7 standalone distributions ship but do not use tomcat, and as such are not affected by this flaw; however, Fuse Integration Services 2.0 and Fuse 7 on OpenShift provide the affected artifacts via their respective maven repositories, and will provide fixes for this issue in a future release.

Remediation:
Before applying this update, make sure all previously released errata relevant to your system have been applied.

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258
Before applying this update, make sure all previously released errata relevant to your system have been applied.

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258
Before applying the update, back up your existing Red Hat JBoss Web Server installation (including all applications and configuration files).

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258
Before applying this update, make sure all previously released errata
relevant to your system have been applied. 

For details on how to apply this update, refer to:
https://access.redhat.com/articles/11258
Before applying this update, make sure all previously released errata relevant to your system have been applied.

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258
Before applying this update, make sure all previously released errata relevant to your system have been applied.

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258
Before applying the update, back up your existing installation, including all applications, configuration files, databases and database settings, and so on.

Installation instructions are located in the download section of the customer portal.

The References section of this erratum contains a download link (you must log in to download the update).
Before applying the update, back up your existing installation, including all applications, configuration files, databases and database settings, and so on.

Updating instructions and release notes may be found at:

https://access.redhat.com/articles/3060411
Before applying this update, back up your existing Red Hat JBoss Enterprise Application Platform installation and deployed applications.

The References section of this erratum contains a download link (you must log in to download the update).
Before applying this update, back up your existing JBoss Operations Network installation (including its databases, applications, configuration files, the JBoss Operations Network server's file system directory, and so on).

The References section of this erratum contains a download link (you must log in to download the update).
Before applying the update, back up your existing Red Hat JBoss Web Server installation (including all applications and configuration files).

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258
Before applying the update, back up your existing installation, including all applications, configuration files, databases and database settings, and so on.

The References section of this erratum contains a download link (you must log in to download the update).