Ubuntu USN · USN-8369-1

Apache Tomcat Connectors vulnerability

Published: Tue, 02 Jun 2026 13:16

CVE-2024-46544

Summary

Apache Tomcat Connectors could allow local users to expose sensitive information or cause a denial of service.

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.

Recommended actions per Ubuntu release

StackPatch playbook auto-generated per release codename and per affected package.

Ubuntu bionic

libapache-mod-jk→1:1.2.43-1ubuntu0.1~esm2apt_upgrade_esm
Fixed at 1:1.2.43-1ubuntu0.1~esm2 — ESM-only. Enable Ubuntu Pro (free for 5 personal machines) or treat as watch item.
```
sudo pro attach <token>
sudo apt-get update
sudo apt-get install --only-upgrade -y libapache-mod-jk=1:1.2.43-1ubuntu0.1~esm2
```
Sign up at https://ubuntu.com/pro. Free for personal + small-team use.
libapache-mod-jk-doc→1:1.2.43-1ubuntu0.1~esm2apt_upgrade_esm
Fixed at 1:1.2.43-1ubuntu0.1~esm2 — ESM-only. Enable Ubuntu Pro (free for 5 personal machines) or treat as watch item.
```
sudo pro attach <token>
sudo apt-get update
sudo apt-get install --only-upgrade -y libapache-mod-jk-doc=1:1.2.43-1ubuntu0.1~esm2
```
Sign up at https://ubuntu.com/pro. Free for personal + small-team use.
libapache2-mod-jk→1:1.2.43-1ubuntu0.1~esm2apt_upgrade_esm
Fixed at 1:1.2.43-1ubuntu0.1~esm2 — ESM-only. Enable Ubuntu Pro (free for 5 personal machines) or treat as watch item.
```
sudo pro attach <token>
sudo apt-get update
sudo apt-get install --only-upgrade -y libapache2-mod-jk=1:1.2.43-1ubuntu0.1~esm2
```
Sign up at https://ubuntu.com/pro. Free for personal + small-team use.

Ubuntu focal

libapache-mod-jk→1:1.2.46-1ubuntu0.1+esm1apt_upgrade
Standard apt upgrade. Install 1:1.2.46-1ubuntu0.1+esm1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y libapache-mod-jk
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
libapache2-mod-jk→1:1.2.46-1ubuntu0.1+esm1apt_upgrade
Standard apt upgrade. Install 1:1.2.46-1ubuntu0.1+esm1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y libapache2-mod-jk
```
Most apt upgrades restart their service automatically. needrestart lists anything else.

Ubuntu jammy

libapache-mod-jk→1:1.2.48-1ubuntu0.1+esm1apt_upgrade
Standard apt upgrade. Install 1:1.2.48-1ubuntu0.1+esm1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y libapache-mod-jk
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
libapache2-mod-jk→1:1.2.48-1ubuntu0.1+esm1apt_upgrade
Standard apt upgrade. Install 1:1.2.48-1ubuntu0.1+esm1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y libapache2-mod-jk
```
Most apt upgrades restart their service automatically. needrestart lists anything else.

Ubuntu noble

libapache-mod-jk→1:1.2.49-1ubuntu0.1~esm1apt_upgrade_esm
Fixed at 1:1.2.49-1ubuntu0.1~esm1 — ESM-only. Enable Ubuntu Pro (free for 5 personal machines) or treat as watch item.
```
sudo pro attach <token>
sudo apt-get update
sudo apt-get install --only-upgrade -y libapache-mod-jk=1:1.2.49-1ubuntu0.1~esm1
```
Sign up at https://ubuntu.com/pro. Free for personal + small-team use.
libapache-mod-jk-doc→1:1.2.49-1ubuntu0.1~esm1apt_upgrade_esm
Fixed at 1:1.2.49-1ubuntu0.1~esm1 — ESM-only. Enable Ubuntu Pro (free for 5 personal machines) or treat as watch item.
```
sudo pro attach <token>
sudo apt-get update
sudo apt-get install --only-upgrade -y libapache-mod-jk-doc=1:1.2.49-1ubuntu0.1~esm1
```
Sign up at https://ubuntu.com/pro. Free for personal + small-team use.
libapache2-mod-jk→1:1.2.49-1ubuntu0.1~esm1apt_upgrade_esm
Fixed at 1:1.2.49-1ubuntu0.1~esm1 — ESM-only. Enable Ubuntu Pro (free for 5 personal machines) or treat as watch item.
```
sudo pro attach <token>
sudo apt-get update
sudo apt-get install --only-upgrade -y libapache2-mod-jk=1:1.2.49-1ubuntu0.1~esm1
```
Sign up at https://ubuntu.com/pro. Free for personal + small-team use.

Ubuntu xenial

libapache-mod-jk→1:1.2.41-1ubuntu0.1~esm1apt_upgrade_esm
Fixed at 1:1.2.41-1ubuntu0.1~esm1 — ESM-only. Enable Ubuntu Pro (free for 5 personal machines) or treat as watch item.
```
sudo pro attach <token>
sudo apt-get update
sudo apt-get install --only-upgrade -y libapache-mod-jk=1:1.2.41-1ubuntu0.1~esm1
```
Sign up at https://ubuntu.com/pro. Free for personal + small-team use.
libapache-mod-jk-doc→1:1.2.41-1ubuntu0.1~esm1apt_upgrade_esm
Fixed at 1:1.2.41-1ubuntu0.1~esm1 — ESM-only. Enable Ubuntu Pro (free for 5 personal machines) or treat as watch item.
```
sudo pro attach <token>
sudo apt-get update
sudo apt-get install --only-upgrade -y libapache-mod-jk-doc=1:1.2.41-1ubuntu0.1~esm1
```
Sign up at https://ubuntu.com/pro. Free for personal + small-team use.
libapache2-mod-jk→1:1.2.41-1ubuntu0.1~esm1apt_upgrade_esm
Fixed at 1:1.2.41-1ubuntu0.1~esm1 — ESM-only. Enable Ubuntu Pro (free for 5 personal machines) or treat as watch item.
```
sudo pro attach <token>
sudo apt-get update
sudo apt-get install --only-upgrade -y libapache2-mod-jk=1:1.2.41-1ubuntu0.1~esm1
```
Sign up at https://ubuntu.com/pro. Free for personal + small-team use.

Are YOU affected by USN-8369-1?

5-second check on your actual server. Reads /etc/os-release, uname -r, and dpkg-query; matches against the live USN + Debian Security Tracker feeds; tells you whether USN-8369-1 (and any other live CVE) applies. Anonymous, no signup.

curl https://mindsparkstack.com/scan.sh | bash

Form-based quickscan Read the bash source first

Want this automated for your servers?

StackPatch runs this match against YOUR installed packages every hour

Free 1-server / $99 lifetime founder seat (50 only) / $19+/mo monthly. Indie pricing.

Buy lifetime →See StackPatch →Live audit log →