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Ubuntu Security Notice USN-6908-1

Ubuntu Security Notice 6908-1 - It was discovered that the Tomcat SSI printenv command echoed user provided data without escaping it. An attacker could possibly use this issue to perform an XSS attack. It was discovered that Tomcat incorrectly handled certain uncommon PersistenceManager with FileStore configurations. A remote attacker could possibly use this issue to execute arbitrary code.

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Ubuntu Security Notice USN-6908-1
July 23, 2024

tomcat vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 18.04 LTS
  • Ubuntu 16.04 LTS
  • Ubuntu 14.04 LTS

Summary:

Several security issues were fixed in Tomcat.

Software Description:

  • tomcat7: Servlet 3.0 and JSP 2.2 Java API classes

Details:

It was discovered that the Tomcat 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 incorrectly handled certain uncommon
PersistenceManager with FileStore configurations. A remote attacker could
possibly use this issue to execute arbitrary code.
(CVE-2020-9484, CVE-2021-25329)

Update instructions:

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

Ubuntu 18.04 LTS
libservlet3.0-java 7.0.78-1ubuntu0.1~esm1
Available with Ubuntu Pro

Ubuntu 16.04 LTS
libservlet3.0-java 7.0.68-1ubuntu0.4+esm2
Available with Ubuntu Pro
libtomcat7-java 7.0.68-1ubuntu0.4+esm2
Available with Ubuntu Pro
tomcat7 7.0.68-1ubuntu0.4+esm2
Available with Ubuntu Pro

Ubuntu 14.04 LTS
libservlet3.0-java 7.0.52-1ubuntu0.16+esm1
Available with Ubuntu Pro
libtomcat7-java 7.0.52-1ubuntu0.16+esm1
Available with Ubuntu Pro
tomcat7 7.0.52-1ubuntu0.16+esm1
Available with Ubuntu Pro

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

References:
https://ubuntu.com/security/notices/USN-6908-1
CVE-2019-0221, CVE-2020-9484, CVE-2021-25329

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