Alerts This Week
Warning Icon 1 714
Alerts This Week
Warning Icon 1 714

Ubuntu 25.10: Erlang Critical DoS Issue Fix USN-7831-1 CVE-2025-48038

ubuntu
Calendar Grey October 21, 2025
Dist Ubuntu Esm H88
Multiple security issues in Erlang for Ubuntu fixed; updates recommended for stability and protection against DoS.
Several security issues were fixed in Erlang.

Summary

A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 25.10 - Ubuntu 25.04 - Ubuntu 24.04 LTS - Ubuntu 22.04 LTS - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS - Ubuntu 14.04 LTS Summary: Several security issues were fixed in Erlang. Software Description: - 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.

Topics%20covered

Topics Covered

security advisory denial of service critical Ubuntu resource allocation erlang

Update Instructions

The problem can be corrected by updating your system to the following package versions: Ubuntu 25.10 erlang 1:27.3.4.1+dfsg-1ubuntu0.1 erlang-ssh 1:27.3.4.1+dfsg-1ubuntu0.1 Ubuntu 25.04 erlang 1:27.3+dfsg-1ubuntu1.3 erlang-ssh 1:27.3+dfsg-1ubuntu1.3 Ubuntu 24.04 LTS erlang 1:25.3.2.8+dfsg-1ubuntu4.5 erlang-ssh 1:25.3.2.8+dfsg-1ubuntu4.5 Ubuntu 22.04 LTS erlang 1:24.2.1+dfsg-1ubuntu0.6 erlang-ssh 1:24.2.1+dfsg-1ubuntu0.6 Ubuntu 20.04 LTS erlang 1:22.2.7+dfsg-1ubuntu0.5+esm1 Available with Ubuntu Pro erlang-ssh 1:22.2.7+dfsg-1ubuntu0.5+esm1 Available with Ubuntu Pro Ubuntu 18.04 LTS erlang 1:20.2.2+dfsg-1ubuntu2+esm2 Available with Ubuntu Pro erlang-ssh 1:20.2.2+dfsg-1ubuntu2+esm2 Available with Ubuntu Pro Ubuntu 16.04 LTS erlang 1:18.3-dfsg-1ubuntu3.1+esm2 Available with Ubuntu Pro erlang-ssh 1:18.3-dfsg-1ubuntu3.1+esm2 Available with Ubuntu Pro Ubuntu 14.04 LTS erlang 1:16.b.3-dfsg-1ubuntu2.2+esm1 Available with Ubuntu Pro erlang-ssh 1:16.b.3-dfsg-1ubuntu2.2+esm1 Available with Ubuntu Pro After a standard system update you need to reboot your computer to make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-7831-1

CVE-2025-48038, CVE-2025-48039, CVE-2025-48040, CVE-2025-48041

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-7831-1

Topics%20covered

Topics Covered

security advisory denial of service critical Ubuntu resource allocation erlang

Package Information

https://launchpad.net/ubuntu/+source/erlang/1:27.3.4.1+dfsg-1ubuntu0.1 https://launchpad.net/ubuntu/+source/erlang/1:25.3.2.8+dfsg-1ubuntu4.5 https://launchpad.net/ubuntu/+source/erlang/1:24.2.1+dfsg-1ubuntu0.6

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.

Your message here