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AUSCERT External Security Bulletin Redistribution
ESB-2020.0288
USN-4251-1: Tomcat vulnerabilities
28 January 2020
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AusCERT Security Bulletin Summary
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Product: Tomcat
Publisher: Ubuntu
Operating System: Ubuntu
Impact/Access: Access Confidential Data -- Existing Account
Unauthorised Access -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2019-17563 CVE-2019-12418
Reference: ESB-2020.0284
ESB-2020.0063
ESB-2020.0014
ESB-2019.4714
Original Bulletin:
https://usn.ubuntu.com/4251-1/
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USN-4251-1: Tomcat vulnerabilities
27 January 2020
tomcat8 vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
o Ubuntu 16.04 LTS
Summary
Several security issues were fixed in Tomcat.
Software Description
o tomcat8 - Servlet and JSP engine
Details
It was discovered that Tomcat incorrectly handled the RMI registry when
configured with the JMX Remote Lifecycle Listener. A local attacker could
possibly use this issue to obtain credentials and gain complete control over
the Tomcat instance. (CVE-2019-12418)
It was discovered that Tomcat incorrectly handled FORM authentication. A remote
attacker could possibly use this issue to perform a session fixation attack.
(CVE-2019-17563)
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 16.04 LTS
libtomcat8-java - 8.0.32-1ubuntu1.11
tomcat8 - 8.0.32-1ubuntu1.11
To update your system, please follow these instructions: https://
wiki.ubuntu.com/Security/Upgrades .
In general, a standard system update will make all the necessary changes.
References
o CVE-2019-12418
o CVE-2019-17563
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