USN-7831-1: Erlang vulnerabilities

Publication date

21 October 2025

Overview

Several security issues were fixed in Erlang.


Packages

  • 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.

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.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
25.10 questing erlang –  1:27.3.4.1+dfsg-1ubuntu0.1
erlang-ssh –  1:27.3.4.1+dfsg-1ubuntu0.1
25.04 plucky erlang –  1:27.3+dfsg-1ubuntu1.3
erlang-ssh –  1:27.3+dfsg-1ubuntu1.3
24.04 LTS noble erlang –  1:25.3.2.8+dfsg-1ubuntu4.5
erlang-ssh –  1:25.3.2.8+dfsg-1ubuntu4.5
22.04 LTS jammy erlang –  1:24.2.1+dfsg-1ubuntu0.6
erlang-ssh –  1:24.2.1+dfsg-1ubuntu0.6
20.04 LTS focal erlang –  1:22.2.7+dfsg-1ubuntu0.5+esm1  
erlang-ssh –  1:22.2.7+dfsg-1ubuntu0.5+esm1  
18.04 LTS bionic erlang –  1:20.2.2+dfsg-1ubuntu2+esm2  
erlang-ssh –  1:20.2.2+dfsg-1ubuntu2+esm2  
16.04 LTS xenial erlang –  1:18.3-dfsg-1ubuntu3.1+esm2  
erlang-ssh –  1:18.3-dfsg-1ubuntu3.1+esm2  
14.04 LTS trusty erlang –  1:16.b.3-dfsg-1ubuntu2.2+esm1  
erlang-ssh –  1:16.b.3-dfsg-1ubuntu2.2+esm1  

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