Ubuntu USN · USN-8600-1

libXpm vulnerability

Published: Thu, 23 Jul 2026 14:41

CVE-2026-4367

Summary

libXpm could be made to crash if it opened a specially crafted file.

Details

Naoki Wakamatsu discovered that libXpm did not properly validate file boundaries when processing XPM image files. An attacker could possibly use this issue to cause libXpm to crash, resulting in a denial of service.

Recommended actions per Ubuntu release

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

Ubuntu jammy

libxpm→1:3.5.12-1ubuntu0.22.04.3apt_upgrade
Standard apt upgrade. Install 1:3.5.12-1ubuntu0.22.04.3 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y libxpm
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
libxpm-dev→1:3.5.12-1ubuntu0.22.04.3apt_upgrade
Standard apt upgrade. Install 1:3.5.12-1ubuntu0.22.04.3 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y libxpm-dev
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
libxpm4→1:3.5.12-1ubuntu0.22.04.3apt_upgrade
Standard apt upgrade. Install 1:3.5.12-1ubuntu0.22.04.3 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y libxpm4
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
xpmutils→1:3.5.12-1ubuntu0.22.04.3apt_upgrade
Standard apt upgrade. Install 1:3.5.12-1ubuntu0.22.04.3 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y xpmutils
```
Most apt upgrades restart their service automatically. needrestart lists anything else.

Ubuntu noble

libxpm→1:3.5.17-1ubuntu0.24.04.1apt_upgrade
Standard apt upgrade. Install 1:3.5.17-1ubuntu0.24.04.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y libxpm
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
libxpm-dev→1:3.5.17-1ubuntu0.24.04.1apt_upgrade
Standard apt upgrade. Install 1:3.5.17-1ubuntu0.24.04.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y libxpm-dev
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
libxpm4→1:3.5.17-1ubuntu0.24.04.1apt_upgrade
Standard apt upgrade. Install 1:3.5.17-1ubuntu0.24.04.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y libxpm4
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
xpmutils→1:3.5.17-1ubuntu0.24.04.1apt_upgrade
Standard apt upgrade. Install 1:3.5.17-1ubuntu0.24.04.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y xpmutils
```
Most apt upgrades restart their service automatically. needrestart lists anything else.

Ubuntu resolute

libxpm→1:3.5.17-1ubuntu0.26.04.1apt_upgrade
Standard apt upgrade. Install 1:3.5.17-1ubuntu0.26.04.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y libxpm
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
libxpm-dev→1:3.5.17-1ubuntu0.26.04.1apt_upgrade
Standard apt upgrade. Install 1:3.5.17-1ubuntu0.26.04.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y libxpm-dev
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
libxpm4→1:3.5.17-1ubuntu0.26.04.1apt_upgrade
Standard apt upgrade. Install 1:3.5.17-1ubuntu0.26.04.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y libxpm4
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
xpmutils→1:3.5.17-1ubuntu0.26.04.1apt_upgrade
Standard apt upgrade. Install 1:3.5.17-1ubuntu0.26.04.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y xpmutils
```
Most apt upgrades restart their service automatically. needrestart lists anything else.

Are YOU affected by USN-8600-1?

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