USN-9069-1: libseccomp-golang vulnerability

Publication date

12 November 2026

Overview

A system hardening measure could be bypassed.

Releases


Packages

Details

It was discovered that libseccomp-golang incorrectly generated BPF filters
for rules that specified multiple syscall arguments, matching any one of
the arguments instead of all of them. An attacker could possibly use this
issue to bypass intended seccomp restrictions.

It was discovered that libseccomp-golang incorrectly generated BPF filters
for rules that specified multiple syscall arguments, matching any one of
the arguments instead of all of them. An attacker could possibly use this
issue to bypass intended seccomp restrictions.

Update instructions

After a standard system update anything that depends on libseccomp-golang needs to be rebuilt 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
18.04 LTS bionic golang-github-seccomp-libseccomp-golang-dev –  0.9.0-1ubuntu0.1~esm1  

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