[USN-7443-1] Erlang vulnerability

[Marc Deslauriers]

==========================================================================
Ubuntu Security Notice USN-7443-1
April 17, 2025

erlang vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 24.10
- Ubuntu 24.04 LTS
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS

Summary:

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

Software Description:
- 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:

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

Ubuntu 24.10
   erlang                          1:25.3.2.12+dfsg-1ubuntu2.3
   erlang-ssh                      1:25.3.2.12+dfsg-1ubuntu2.3

Ubuntu 24.04 LTS
   erlang                          1:25.3.2.8+dfsg-1ubuntu4.3
   erlang-ssh                      1:25.3.2.8+dfsg-1ubuntu4.3

Ubuntu 22.04 LTS
   erlang                          1:24.2.1+dfsg-1ubuntu0.4
   erlang-ssh                      1:24.2.1+dfsg-1ubuntu0.4

Ubuntu 20.04 LTS
   erlang                          1:22.2.7+dfsg-1ubuntu0.5
   erlang-ssh                      1:22.2.7+dfsg-1ubuntu0.5

After a standard system update you need to reboot your computer to make all
the necessary changes.

References:
   https://ubuntu.com/security/notices/USN-7443-1
   CVE-2025-32433

Package Information:
   https://launchpad.net/ubuntu/+source/erlang/1:25.3.2.12+dfsg-1ubuntu2.3
   https://launchpad.net/ubuntu/+source/erlang/1:25.3.2.8+dfsg-1ubuntu4.3
   https://launchpad.net/ubuntu/+source/erlang/1:24.2.1+dfsg-1ubuntu0.4
   https://launchpad.net/ubuntu/+source/erlang/1:22.2.7+dfsg-1ubuntu0.5

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