--- title: 'USN-7831-1: Erlang vulnerabilities | 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-7831-1 --- 1. [Ubuntu Security Notices](https://ubuntu.com/security/notices) 2. USN-7831-1 --- # USN-7831-1: Erlang vulnerabilities Publication date 21 October 2025 Overview Several security issues were fixed in Erlang. Releases [25.10](https://ubuntu.com/security/notices?release=questing) [25.04](https://ubuntu.com/security/notices?release=plucky) [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) [18.04 LTS](https://ubuntu.com/security/notices?release=bionic) [16.04 LTS](https://ubuntu.com/security/notices?release=xenial) [14.04 LTS](https://ubuntu.com/security/notices?release=trusty) --- Open side navigation ## Packages * [erlang](https://ubuntu.com/security/cves?package=erlang) - Concurrent, real-time, distributed functional language ## Details It was discovered that Erlang incorrectly handled resource allocation and consumption in the SFTP SSH module. An attacker could possibly use this issue cause Erlang to consume excessive resources, leading to a denial of service. ## 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 | | --- | --- | | 25.10 questing | [erlang](https://launchpad.net/ubuntu/+source/erlang) –  [1:27.3.4.1+dfsg-1ubuntu0.1](https://launchpad.net/ubuntu/+source/erlang/1:27.3.4.1+dfsg-1ubuntu0.1) | | | | [erlang-ssh](https://launchpad.net/ubuntu/+source/erlang) –  [1:27.3.4.1+dfsg-1ubuntu0.1](https://launchpad.net/ubuntu/+source/erlang/1:27.3.4.1+dfsg-1ubuntu0.1) | | | | 25.04 plucky | [erlang](https://launchpad.net/ubuntu/+source/erlang) –  [1:27.3+dfsg-1ubuntu1.3](https://launchpad.net/ubuntu/+source/erlang/1:27.3+dfsg-1ubuntu1.3) | | | | [erlang-ssh](https://launchpad.net/ubuntu/+source/erlang) –  [1:27.3+dfsg-1ubuntu1.3](https://launchpad.net/ubuntu/+source/erlang/1:27.3+dfsg-1ubuntu1.3) | | | | 24.04 LTS noble | [erlang](https://launchpad.net/ubuntu/+source/erlang) –  [1:25.3.2.8+dfsg-1ubuntu4.5](https://launchpad.net/ubuntu/+source/erlang/1:25.3.2.8+dfsg-1ubuntu4.5) | | | | [erlang-ssh](https://launchpad.net/ubuntu/+source/erlang) –  [1:25.3.2.8+dfsg-1ubuntu4.5](https://launchpad.net/ubuntu/+source/erlang/1:25.3.2.8+dfsg-1ubuntu4.5) | | | | 22.04 LTS jammy | [erlang](https://launchpad.net/ubuntu/+source/erlang) –  [1:24.2.1+dfsg-1ubuntu0.6](https://launchpad.net/ubuntu/+source/erlang/1:24.2.1+dfsg-1ubuntu0.6) | | | | [erlang-ssh](https://launchpad.net/ubuntu/+source/erlang) –  [1:24.2.1+dfsg-1ubuntu0.6](https://launchpad.net/ubuntu/+source/erlang/1:24.2.1+dfsg-1ubuntu0.6) | | | | 20.04 LTS focal | [erlang](https://launchpad.net/ubuntu/+source/erlang) –  1:22.2.7+dfsg-1ubuntu0.5+esm1   Ubuntu Pro | | | | [erlang-ssh](https://launchpad.net/ubuntu/+source/erlang) –  1:22.2.7+dfsg-1ubuntu0.5+esm1   Ubuntu Pro | | | | 18.04 LTS bionic | [erlang](https://launchpad.net/ubuntu/+source/erlang) –  1:20.2.2+dfsg-1ubuntu2+esm2   Ubuntu Pro | | | | [erlang-ssh](https://launchpad.net/ubuntu/+source/erlang) –  1:20.2.2+dfsg-1ubuntu2+esm2   Ubuntu Pro | | | | 16.04 LTS xenial | [erlang](https://launchpad.net/ubuntu/+source/erlang) –  1:18.3-dfsg-1ubuntu3.1+esm2   Ubuntu Pro | | | | [erlang-ssh](https://launchpad.net/ubuntu/+source/erlang) –  1:18.3-dfsg-1ubuntu3.1+esm2   Ubuntu Pro | | | | 14.04 LTS trusty | [erlang](https://launchpad.net/ubuntu/+source/erlang) –  1:16.b.3-dfsg-1ubuntu2.2+esm1   Ubuntu Pro | | | | [erlang-ssh](https://launchpad.net/ubuntu/+source/erlang) –  1:16.b.3-dfsg-1ubuntu2.2+esm1   Ubuntu Pro | | | --- ### 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-2025-48041](https://ubuntu.com/security/CVE-2025-48041) * [CVE-2025-48040](https://ubuntu.com/security/CVE-2025-48040) * [CVE-2025-48039](https://ubuntu.com/security/CVE-2025-48039) * [CVE-2025-48038](https://ubuntu.com/security/CVE-2025-48038)