[USN-8218-1] zuluCrypt vulnerability

========================================================================== Ubuntu Security Notice USN-8218-1 April 30, 2026 zulucrypt vulnerability ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 24.04 LTS - Ubuntu 22.04 LTS - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS Summary: zuluCrypt could be made to run programs as an administrator. Software Description: - zulucrypt: A simple, feature rich and powerful solution for hard drives encryption Details: Aaron Rainbolt discovered that zuluCrypt used insecure PolicyKit settings in zuluPolkit. An attacker could possibly use this issue to cause local privilege escalation to root. (CVE-2025-53391) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 24.04 LTS libzulucrypt-dev 6.2.0-1ubuntu3+esm1 Available with Ubuntu Pro libzulucrypt-exe-dev 6.2.0-1ubuntu3+esm1 Available with Ubuntu Pro libzulucrypt-exe1.2.0 6.2.0-1ubuntu3+esm1 Available with Ubuntu Pro libzulucrypt-plugins 6.2.0-1ubuntu3+esm1 Available with Ubuntu Pro libzulucrypt1.2.0 6.2.0-1ubuntu3+esm1 Available with Ubuntu Pro libzulucryptpluginmanager-dev 6.2.0-1ubuntu3+esm1 Available with Ubuntu Pro libzulucryptpluginmanager1.0.0 6.2.0-1ubuntu3+esm1 Available with Ubuntu Pro zulucrypt-cli 6.2.0-1ubuntu3+esm1 Available with Ubuntu Pro zulucrypt-gui 6.2.0-1ubuntu3+esm1 Available with Ubuntu Pro zulumount-cli 6.2.0-1ubuntu3+esm1 Available with Ubuntu Pro zulumount-gui 6.2.0-1ubuntu3+esm1 Available with Ubuntu Pro zulupolkit 6.2.0-1ubuntu3+esm1 Available with Ubuntu Pro zulusafe-cli 6.2.0-1ubuntu3+esm1 Available with Ubuntu Pro Ubuntu 22.04 LTS libzulucrypt-dev 5.7.1-2ubuntu0.1~esm1 Available with Ubuntu Pro libzulucrypt-exe-dev 5.7.1-2ubuntu0.1~esm1 Available with Ubuntu Pro libzulucrypt-exe1.2.0 5.7.1-2ubuntu0.1~esm1 Available with Ubuntu Pro libzulucrypt-plugins 5.7.1-2ubuntu0.1~esm1 Available with Ubuntu Pro libzulucrypt1.2.0 5.7.1-2ubuntu0.1~esm1 Available with Ubuntu Pro libzulucryptpluginmanager-dev 5.7.1-2ubuntu0.1~esm1 Available with Ubuntu Pro libzulucryptpluginmanager1.0.0 5.7.1-2ubuntu0.1~esm1 Available with Ubuntu Pro zulucrypt-cli 5.7.1-2ubuntu0.1~esm1 Available with Ubuntu Pro zulucrypt-gui 5.7.1-2ubuntu0.1~esm1 Available with Ubuntu Pro zulumount-cli 5.7.1-2ubuntu0.1~esm1 Available with Ubuntu Pro zulumount-gui 5.7.1-2ubuntu0.1~esm1 Available with Ubuntu Pro zulupolkit 5.7.1-2ubuntu0.1~esm1 Available with Ubuntu Pro zulusafe-cli 5.7.1-2ubuntu0.1~esm1 Available with Ubuntu Pro Ubuntu 20.04 LTS libzulucrypt-dev 5.7.0-1ubuntu0.1~esm1 Available with Ubuntu Pro libzulucrypt-exe-dev 5.7.0-1ubuntu0.1~esm1 Available with Ubuntu Pro libzulucrypt-exe1.2.0 5.7.0-1ubuntu0.1~esm1 Available with Ubuntu Pro libzulucrypt-plugins 5.7.0-1ubuntu0.1~esm1 Available with Ubuntu Pro libzulucrypt1.2.0 5.7.0-1ubuntu0.1~esm1 Available with Ubuntu Pro libzulucryptpluginmanager-dev 5.7.0-1ubuntu0.1~esm1 Available with Ubuntu Pro libzulucryptpluginmanager1.0.0 5.7.0-1ubuntu0.1~esm1 Available with Ubuntu Pro zulucrypt-cli 5.7.0-1ubuntu0.1~esm1 Available with Ubuntu Pro zulucrypt-gui 5.7.0-1ubuntu0.1~esm1 Available with Ubuntu Pro zulumount-cli 5.7.0-1ubuntu0.1~esm1 Available with Ubuntu Pro zulumount-gui 5.7.0-1ubuntu0.1~esm1 Available with Ubuntu Pro zulupolkit 5.7.0-1ubuntu0.1~esm1 Available with Ubuntu Pro zulusafe-cli 5.7.0-1ubuntu0.1~esm1 Available with Ubuntu Pro Ubuntu 18.04 LTS libzulucrypt-dev 5.4.0-2ubuntu0.1~esm2 Available with Ubuntu Pro libzulucrypt-exe-dev 5.4.0-2ubuntu0.1~esm2 Available with Ubuntu Pro libzulucrypt-exe1.2.0 5.4.0-2ubuntu0.1~esm2 Available with Ubuntu Pro libzulucrypt-plugins 5.4.0-2ubuntu0.1~esm2 Available with Ubuntu Pro libzulucrypt1.2.0 5.4.0-2ubuntu0.1~esm2 Available with Ubuntu Pro libzulucryptpluginmanager-dev 5.4.0-2ubuntu0.1~esm2 Available with Ubuntu Pro libzulucryptpluginmanager1.0.0 5.4.0-2ubuntu0.1~esm2 Available with Ubuntu Pro zulucrypt-cli 5.4.0-2ubuntu0.1~esm2 Available with Ubuntu Pro zulucrypt-gui 5.4.0-2ubuntu0.1~esm2 Available with Ubuntu Pro zulumount-cli 5.4.0-2ubuntu0.1~esm2 Available with Ubuntu Pro zulumount-gui 5.4.0-2ubuntu0.1~esm2 Available with Ubuntu Pro zulupolkit 5.4.0-2ubuntu0.1~esm2 Available with Ubuntu Pro zulusafe-cli 5.4.0-2ubuntu0.1~esm2 Available with Ubuntu Pro In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-8218-1 CVE-2025-53391