USN-4128-2: Tomcat vulnerabilities

Releases

• Ubuntu 19.04
• Ubuntu 18.04 ESM

Packages

• tomcat9 - Servlet and JSP engine

Details

It was discovered that the Tomcat 9 SSI printenv command echoed user
provided data without escaping it. An attacker could possibly use this
issue to perform an XSS attack. (CVE-2019-0221)

It was discovered that Tomcat 9 did not address HTTP/2 connection window
exhaustion on write while addressing CVE-2019-0199. An attacker could
possibly use this issue to cause a denial of service. (CVE-2019-10072)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 19.04

• libtomcat9-java - 9.0.16-3ubuntu0.19.04.1
• tomcat9 - 9.0.16-3ubuntu0.19.04.1

Ubuntu 18.04

• libtomcat9-java - 9.0.16-3ubuntu0.18.04.1
• tomcat9 - 9.0.16-3ubuntu0.18.04.1

In general, a standard system update will make all the necessary changes.

References

• CVE-2019-0221
• CVE-2019-10072

Related notices

• USN-4128-1: tomcat8-examples, tomcat8-user, libservlet3.1-java, tomcat8, tomcat8-docs, tomcat8-admin, libtomcat8-java, tomcat8-common, libservlet3.1-java-doc, libtomcat8-embed-java
• USN-6908-1: tomcat7-admin, tomcat7, tomcat7-examples, libservlet3.0-java-doc, libtomcat7-java, tomcat7-user, tomcat7-common, tomcat7-docs, libservlet3.0-java