USN-6943-1: Tomcat vulnerabilities
First published: Thu Aug 01 2024(Updated: )
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. This issue only affected tomcat8 for Ubuntu 18.04 LTS (CVE-2020-9484) It was discovered that Tomcat incorrectly handled certain HTTP/2 connection requests. A remote attacker could use this issue to obtain wrong responses possibly containing sensitive information. This issue only affected tomcat8 for Ubuntu 18.04 LTS (CVE-2021-25122) Thomas Wozenilek discovered that Tomcat incorrectly handled certain TLS packets. A remote attacker could possibly use this issue to cause a denial of service. This issue only affected tomcat8 for Ubuntu 18.04 LTS (CVE-2021-41079) Trung Pham discovered that a race condition existed in Tomcat when handling session files with FileStore. A remote attacker could possibly use this issue to execute arbitrary code. This issue affected tomcat8 for Ubuntu 16.04 LTS and Ubuntu 18.04 LTS, and tomcat9 for Ubuntu 18.04 LTS and Ubuntu 20.04 LTS (CVE-2022-23181) It was discovered that Tomcat's documentation incorrectly stated that EncryptInterceptor provided availability protection when running over an untrusted network. A remote attacker could possibly use this issue to cause a denial of service even if EncryptInterceptor was being used. This issue affected tomcat8 for Ubuntu 18.04 LTS, and tomcat9 for Ubuntu 18.04 LTS, Ubuntu 20.04 LTS and Ubuntu 22.04 LTS (CVE-2022-29885)
| Affected Software | Affected Version | How to fix |
|---|---|---|
| All of | ||
| ubuntu/tomcat9-docs | <9.0.58-1ubuntu0.1+esm2 | 9.0.58-1ubuntu0.1+esm2 |
| Ubuntu | =22.04 | |
| All of | ||
| ubuntu/libtomcat9-java | <9.0.31-1ubuntu0.6 | 9.0.31-1ubuntu0.6 |
| Ubuntu | =20.04 | |
| All of | ||
| ubuntu/tomcat9 | <9.0.31-1ubuntu0.6 | 9.0.31-1ubuntu0.6 |
| Ubuntu | =20.04 | |
| All of | ||
| ubuntu/tomcat9-docs | <9.0.31-1ubuntu0.6 | 9.0.31-1ubuntu0.6 |
| Ubuntu | =20.04 | |
| All of | ||
| ubuntu/libtomcat8-java | <8.5.39-1ubuntu1~18.04.3+esm2 | 8.5.39-1ubuntu1~18.04.3+esm2 |
| Ubuntu | =18.04 | |
| All of | ||
| ubuntu/libtomcat9-java | <9.0.16-3ubuntu0.18.04.2+esm2 | 9.0.16-3ubuntu0.18.04.2+esm2 |
| Ubuntu | =18.04 | |
| All of | ||
| ubuntu/tomcat8 | <8.5.39-1ubuntu1~18.04.3+esm2 | 8.5.39-1ubuntu1~18.04.3+esm2 |
| Ubuntu | =18.04 | |
| All of | ||
| ubuntu/tomcat8-docs | <8.5.39-1ubuntu1~18.04.3+esm2 | 8.5.39-1ubuntu1~18.04.3+esm2 |
| Ubuntu | =18.04 | |
| All of | ||
| ubuntu/tomcat9 | <9.0.16-3ubuntu0.18.04.2+esm2 | 9.0.16-3ubuntu0.18.04.2+esm2 |
| Ubuntu | =18.04 | |
| All of | ||
| ubuntu/tomcat9-docs | <9.0.16-3ubuntu0.18.04.2+esm2 | 9.0.16-3ubuntu0.18.04.2+esm2 |
| Ubuntu | =18.04 | |
| All of | ||
| ubuntu/libtomcat8-java | <8.0.32-1ubuntu1.13+esm1 | 8.0.32-1ubuntu1.13+esm1 |
| Ubuntu | =16.04 | |
| All of | ||
| ubuntu/tomcat8 | <8.0.32-1ubuntu1.13+esm1 | 8.0.32-1ubuntu1.13+esm1 |
| Ubuntu | =16.04 |
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Reference Links
- https://ubuntu.com/security/CVE-2020-9484
- https://ubuntu.com/security/CVE-2021-41079
- https://ubuntu.com/security/CVE-2022-29885
- https://ubuntu.com/security/CVE-2022-23181
- https://ubuntu.com/security/CVE-2021-25122
- https://ubuntu.com/security/notices/USN-4448-1
- https://ubuntu.com/security/notices/USN-4596-1
- https://ubuntu.com/security/notices/USN-5360-1
- https://ubuntu.com/security/notices/USN-6908-1
- https://launchpad.net/ubuntu/+source/tomcat9/9.0.31-1ubuntu0.6
- https://ubuntu.com/security/notices/USN-6943-1 (Advisory)
Child vulnerabilities
(Contains the following vulnerabilities)
Frequently Asked Questions
What is the vulnerability severity of USN-6943-1?
The vulnerability USN-6943-1 has a high severity rating, allowing potential execution of arbitrary code.
How do I fix USN-6943-1?
To resolve USN-6943-1, you should upgrade your Tomcat installation to the specified remedied versions depending on your Ubuntu version.
Which versions of Tomcat are affected by USN-6943-1?
USN-6943-1 affects Tomcat 8.x and 9.x versions running on Ubuntu 18.04, 20.04, and 22.04.
Is USN-6943-1 specific to Ubuntu distributions?
Yes, USN-6943-1 specifically impacts the Ubuntu distributions where Tomcat is installed.
What potential risk does USN-6943-1 pose to my system?
The risk associated with USN-6943-1 includes the possibility of remote attackers executing arbitrary code on your server.
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- agent/last-modified-date
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- agent/trending
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- agent/softwarecombine
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- source/Ubuntu
- agent/software-canonical-lookup
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- package-manager/ubuntu
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- version/ubuntu/22.04
- version/ubuntu/20.04
- version/ubuntu/18.04
- version/ubuntu/16.04