USN-8326-1: Foomuuri vulnerabilities

Publication date

27 May 2026

Overview

Several security issues were fixed in Foomuuri.


Packages

  • foomuuri - multizone bidirectional nftables firewall

Details

Matthias Gerstner discovered that Foomuuri's D-Bus service did not properly
enforce authorization. An unprivileged local attacker could possibly use
this issue to manipulate the firewall configuration, contrary to
expectations. (CVE-2025-67603)

Matthias Gerstner discovered that Foomuuri's D-Bus service did not properly
validate interface names. A local attacker could possibly use this issue to
manipulate the firewall configuration in unintended ways. (CVE-2025-67858)

Matthias Gerstner discovered that Foomuuri's D-Bus service did not properly
enforce authorization. An unprivileged local attacker could possibly use
this issue to manipulate the firewall configuration, contrary to
expectations. (CVE-2025-67603)

Matthias Gerstner discovered that Foomuuri's D-Bus service did not properly
validate interface names. A local attacker could possibly use this issue to
manipulate the firewall configuration in unintended ways. (CVE-2025-67858)

Update instructions

After a standard system update you need to restart Foomuuri 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 foomuuri –  0.27-2+deb13u1build0.25.10.1
foomuuri-firewalld –  0.27-2+deb13u1build0.25.10.1
24.04 LTS noble foomuuri –  0.22-1ubuntu0.1~esm1  
foomuuri-firewalld –  0.22-1ubuntu0.1~esm1  

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.


Have additional questions?

Talk to a member of the team ›