CVE-2021-41079

libtomcat8-embed-java: Apache Tomcat 8.5.0 to 8.5.63, 9.0.0-M1 to 9.0.43 and 10.0.0-M1 to 10.0.2 did not properly validate incoming TLS packets

CVE-2021-41079 is fixed in 16 products on 1 platform, first by libtomcat9-embed-java 9.0.16-3ubuntu0.18.04.2, released September 16, 2021. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
n/a
Medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0718
94th percentile

Apache Tomcat 8.5.0 to 8.5.63, 9.0.0-M1 to 9.0.43 and 10.0.0-M1 to 10.0.2 did not properly validate incoming TLS packets. When Tomcat was configured to use NIO+OpenSSL or NIO2+OpenSSL for TLS, a specially crafted packet could be used to trigger an infinite loop resulting in a denial of service.

Where it's fixed

ProductFixed inFixReleased
Linux
libtomcat8-embed-java · Ubuntu 18.04.6 LTS (bionic) 8.5.39-1ubuntu1~18.04.3+esm2 libtomcat8-embed-java 8.5.39-1ubuntu1~18.04.3+esm2 May 12, 2022
libtomcat8-java · Ubuntu 18.04.6 LTS (bionic) 8.5.39-1ubuntu1~18.04.3+esm2 libtomcat8-java 8.5.39-1ubuntu1~18.04.3+esm2 May 12, 2022
libtomcat9-embed-java · Ubuntu 18.04.6 LTS (bionic) 9.0.16-3ubuntu0.18.04.2 libtomcat9-embed-java 9.0.16-3ubuntu0.18.04.2 Sep 16, 2021
libtomcat9-embed-java · Ubuntu 20.04 LTS (focal) 9.0.31-1ubuntu0.2 libtomcat9-embed-java 9.0.31-1ubuntu0.2 Sep 16, 2021
libtomcat9-java · Ubuntu 18.04.6 LTS (bionic) 9.0.16-3ubuntu0.18.04.2 libtomcat9-java 9.0.16-3ubuntu0.18.04.2 Sep 16, 2021
libtomcat9-java · Ubuntu 20.04 LTS (focal) 9.0.31-1ubuntu0.2 libtomcat9-java 9.0.31-1ubuntu0.2 Sep 16, 2021
tomcat8 · Ubuntu 18.04.6 LTS (bionic) 8.5.39-1ubuntu1~18.04.3+esm2 tomcat8 8.5.39-1ubuntu1~18.04.3+esm2 May 12, 2022
tomcat8-admin · Ubuntu 18.04.6 LTS (bionic) 8.5.39-1ubuntu1~18.04.3+esm2 tomcat8-admin 8.5.39-1ubuntu1~18.04.3+esm2 May 12, 2022
tomcat8-common · Ubuntu 18.04.6 LTS (bionic) 8.5.39-1ubuntu1~18.04.3+esm2 tomcat8-common 8.5.39-1ubuntu1~18.04.3+esm2 May 12, 2022
tomcat8-docs · Ubuntu 18.04.6 LTS (bionic) 8.5.39-1ubuntu1~18.04.3+esm2 tomcat8-docs 8.5.39-1ubuntu1~18.04.3+esm2 May 12, 2022
tomcat8-examples · Ubuntu 18.04.6 LTS (bionic) 8.5.39-1ubuntu1~18.04.3+esm2 tomcat8-examples 8.5.39-1ubuntu1~18.04.3+esm2 May 12, 2022
tomcat8-user · Ubuntu 18.04.6 LTS (bionic) 8.5.39-1ubuntu1~18.04.3+esm2 tomcat8-user 8.5.39-1ubuntu1~18.04.3+esm2 May 12, 2022
tomcat9 · Ubuntu 18.04.6 LTS (bionic) 9.0.16-3ubuntu0.18.04.2 tomcat9 9.0.16-3ubuntu0.18.04.2 Sep 16, 2021
tomcat9 · Ubuntu 20.04 LTS (focal) 9.0.31-1ubuntu0.2 tomcat9 9.0.31-1ubuntu0.2 Sep 16, 2021
tomcat9-admin · Ubuntu 18.04.6 LTS (bionic) 9.0.16-3ubuntu0.18.04.2 tomcat9-admin 9.0.16-3ubuntu0.18.04.2 Sep 16, 2021
tomcat9-admin · Ubuntu 20.04 LTS (focal) 9.0.31-1ubuntu0.2 tomcat9-admin 9.0.31-1ubuntu0.2 Sep 16, 2021
tomcat9-common · Ubuntu 18.04.6 LTS (bionic) 9.0.16-3ubuntu0.18.04.2 tomcat9-common 9.0.16-3ubuntu0.18.04.2 Sep 16, 2021
tomcat9-common · Ubuntu 20.04 LTS (focal) 9.0.31-1ubuntu0.2 tomcat9-common 9.0.31-1ubuntu0.2 Sep 16, 2021
tomcat9-docs · Ubuntu 18.04.6 LTS (bionic) 9.0.16-3ubuntu0.18.04.2 tomcat9-docs 9.0.16-3ubuntu0.18.04.2 Sep 16, 2021
tomcat9-docs · Ubuntu 20.04 LTS (focal) 9.0.31-1ubuntu0.2 tomcat9-docs 9.0.31-1ubuntu0.2 Sep 16, 2021
tomcat9-examples · Ubuntu 18.04.6 LTS (bionic) 9.0.16-3ubuntu0.18.04.2 tomcat9-examples 9.0.16-3ubuntu0.18.04.2 Sep 16, 2021
tomcat9-examples · Ubuntu 20.04 LTS (focal) 9.0.31-1ubuntu0.2 tomcat9-examples 9.0.31-1ubuntu0.2 Sep 16, 2021
tomcat9-user · Ubuntu 18.04.6 LTS (bionic) 9.0.16-3ubuntu0.18.04.2 tomcat9-user 9.0.16-3ubuntu0.18.04.2 Sep 16, 2021
tomcat9-user · Ubuntu 20.04 LTS (focal) 9.0.31-1ubuntu0.2 tomcat9-user 9.0.31-1ubuntu0.2 Sep 16, 2021

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