USN-7443-2: Erlang vulnerability

Publication date

23 April 2025

Overview

Erlang could be made to run programs if it received specially crafted network traffic.

Releases


Packages

  • erlang - Concurrent, real-time, distributed functional language

Details

USN-7443-1 fixed a vulnerability in Erlang. This update provides the
corresponding update for Ubuntu 25.04.

Original advisory 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.

USN-7443-1 fixed a vulnerability in Erlang. This update provides the
corresponding update for Ubuntu 25.04.

Original advisory 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.

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

Ubuntu Release Package Version
25.04 plucky erlang –  1:27.3+dfsg-1ubuntu1.1
erlang-ssh –  1:27.3+dfsg-1ubuntu1.1

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