--- title: 'USN-7443-1: Erlang vulnerability | Ubuntu security notices' description: Ubuntu is an open source software operating system that runs from the desktop, to the cloud, to all your internet connected things. url: https://ubuntu.com/security/notices/USN-7443-1 --- 1. [Ubuntu Security Notices](https://ubuntu.com/security/notices) 2. USN-7443-1 --- # USN-7443-1: Erlang vulnerability Publication date 17 April 2025 Overview Erlang could be made to run programs if it received specially crafted network traffic. Releases [24.10](https://ubuntu.com/security/notices?release=oracular) [24.04 LTS](https://ubuntu.com/security/notices?release=noble) [22.04 LTS](https://ubuntu.com/security/notices?release=jammy) [20.04 LTS](https://ubuntu.com/security/notices?release=focal) --- Open side navigation ## Packages * [erlang](https://ubuntu.com/security/cves?package=erlang) - Concurrent, real-time, distributed functional language ## Details Fabian Bäumer, Marcel Maehren, Marcus Brinkmann, and Jörg Schwenk discovered that Erlang OTP’s SSH module incorrect handled authentication. A remote attacker could use this issue to execute arbitrary commands without authentication, possibly leading to a system compromise. ## Update instructions After a standard system update you need to reboot your computer to make all the necessary changes. [Learn more about how to get the fixes.](https://ubuntu.com/security/cves/about#security) The problem can be corrected by updating your system to the following package versions: | Ubuntu Release | Package Version | | --- | --- | | 24.10 oracular | [erlang](https://launchpad.net/ubuntu/+source/erlang) –  [1:25.3.2.12+dfsg-1ubuntu2.3](https://launchpad.net/ubuntu/+source/erlang/1:25.3.2.12+dfsg-1ubuntu2.3) | | | | [erlang-ssh](https://launchpad.net/ubuntu/+source/erlang) –  [1:25.3.2.12+dfsg-1ubuntu2.3](https://launchpad.net/ubuntu/+source/erlang/1:25.3.2.12+dfsg-1ubuntu2.3) | | | | 24.04 LTS noble | [erlang](https://launchpad.net/ubuntu/+source/erlang) –  [1:25.3.2.8+dfsg-1ubuntu4.3](https://launchpad.net/ubuntu/+source/erlang/1:25.3.2.8+dfsg-1ubuntu4.3) | | | | [erlang-ssh](https://launchpad.net/ubuntu/+source/erlang) –  [1:25.3.2.8+dfsg-1ubuntu4.3](https://launchpad.net/ubuntu/+source/erlang/1:25.3.2.8+dfsg-1ubuntu4.3) | | | | 22.04 LTS jammy | [erlang](https://launchpad.net/ubuntu/+source/erlang) –  [1:24.2.1+dfsg-1ubuntu0.4](https://launchpad.net/ubuntu/+source/erlang/1:24.2.1+dfsg-1ubuntu0.4) | | | | [erlang-ssh](https://launchpad.net/ubuntu/+source/erlang) –  [1:24.2.1+dfsg-1ubuntu0.4](https://launchpad.net/ubuntu/+source/erlang/1:24.2.1+dfsg-1ubuntu0.4) | | | | 20.04 LTS focal | [erlang](https://launchpad.net/ubuntu/+source/erlang) –  [1:22.2.7+dfsg-1ubuntu0.5](https://launchpad.net/ubuntu/+source/erlang/1:22.2.7+dfsg-1ubuntu0.5) | | | | [erlang-ssh](https://launchpad.net/ubuntu/+source/erlang) –  [1:22.2.7+dfsg-1ubuntu0.5](https://launchpad.net/ubuntu/+source/erlang/1:22.2.7+dfsg-1ubuntu0.5) | | | --- ### Reduce your security exposure Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines. [Get Ubuntu Pro](https://ubuntu.com/pro) ## References * [CVE-2025-32433](https://ubuntu.com/security/CVE-2025-32433) ## Related notices * [USN-7443-2](https://ubuntu.com/security/notices/USN-7443-2) * [USN-7443-3](https://ubuntu.com/security/notices/USN-7443-3)