USN-8369-2: mod_jk regression
Publication date
23 July 2026
Overview
USN-8369-1 introduced a regression in mod_jk
Releases
Packages
- libapache-mod-jk - Apache 2 connector for the Tomcat Java servlet engine
Details
USN-8369-1 fixed a vulnerability in mod_jk. It was discovered that for
Ubuntu 18.04 LTS, during the update preparation phase, a previous fix for
CVE-2023-41081 was incorrectly dropped. This update reintroduces the fix
for CVE-2023-41081.
We apologize for the inconvenience.
Original advisory details:
It was discovered that Apache Tomcat Connectors used incorrect default
permissions for shared memory on Unix-like systems. A local attacker could
possibly use this issue to view or modify mod_jk configuration data in
shared memory, resulting in sensitive information exposure or a denial of
service.
USN-8369-1 fixed a vulnerability in mod_jk. It was discovered that for
Ubuntu 18.04 LTS, during the update preparation phase, a previous fix for
CVE-2023-41081 was incorrectly dropped. This update reintroduces the fix
for CVE-2023-41081.
We apologize for the inconvenience.
Original advisory details:
It was discovered that Apache Tomcat Connectors used incorrect default
permissions for shared memory on Unix-like systems. A local attacker could
possibly use this issue to view or modify mod_jk configuration data in
shared memory, resulting in sensitive information exposure or a denial of
service.
Update instructions
In general, a standard system update will make all the necessary changes.
Learn more about how to get the fixes.The problem can be corrected by updating your system to the following package versions:
| Ubuntu Release | Package Version | ||
|---|---|---|---|
| 16.04 LTS xenial | libapache2-mod-jk – 1:1.2.41-1ubuntu0.1~esm2 | ||
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