Ubuntu 24.04 beta release delayed to April 11 due to security threat.

Critical vulnerability CVE-2024-3094 found in xz compression library affects major Linux distributions.

Suspected Russian intelligence backdoor could enable SSH access to compromised systems.

Incident prompts scrutiny over open source software security and supply chain vulnerabilities.

Canonical's response includes removal and rebuilding of all binary packages for the affected release.

Potential further delay for final Ubuntu 24.04 release, originally scheduled for April 25.

Security firm Eclypsium proactively protects clients by detecting the xz backdoor.