SUSE releases critical ovpn-dco update (2025-01697-1) with 4K RSA keys for IBM Power/Z. Learn installation steps, security benefits, and enterprise implications for SUSE Linux 15 SP6 & openSUSE Leap 15.6 systems
Severity: Moderate | Affected Platforms: SUSE Linux Enterprise 15 SP6, openSUSE Leap 15.6
Why This Update Matters for Enterprise Security
SUSE has released a crucial update (SUSE-RU-2025:01697-1) for ovpn-dco, enhancing secure boot compatibility for IBM Power and Z architectures with a 4K RSA key upgrade.
This patch ensures compliance with modern cryptographic standards while maintaining existing x86/x86_64 and ARM64 signatures.
Key Benefits:
✔ Strengthened encryption for enterprise VPN deployments
✔ Compliance with IBM Power/Z security requirements
✔ Seamless integration with SUSE’s kernel modules
Affected Products & Installation Guide
Supported Systems
SUSE Linux Enterprise Server 15 SP6 (Including SAP Applications)
SUSE Linux Enterprise Desktop 15 SP6
openSUSE Leap 15.6
Basesystem Module 15-SP6
How to Install
Recommended Methods:
YaST Online Update (GUI)
Terminal Command:
zypper patch
Manual Patch Instructions:
| Product | Command |
|---|---|
| openSUSE Leap 15.6 | zypper in -t patch SUSE-2025-1697=1 openSUSE-SLE-15.6-2025-1697=1 |
| Basesystem Module 15-SP6 | zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP6-2025-1697=1 |
Technical Details & Package List
This update includes rebuilt ovpn-dco kernel modules with debug support:
For openSUSE Leap 15.6 / Basesystem Module 15-SP6:
ovpn-dco-kmp-default(v0.2.20240320)ovpn-dco-debugsource(Troubleshooting package)ARM64-specific:
ovpn-dco-kmp-64kb(Optimized for 64KB page systems)
Impact: Ensures secure boot compatibility while maintaining performance for VPN workloads.
Enterprise Security Implications
This patch addresses:
🔒 Secure Boot Key Rotation (IBM Power/Z only)
🔒 Kernel Module Integrity (No changes for x86/ARM64)
🔒 Zero-day mitigation (Reference: JIRA PED-12028)
Best Practices:
Deploy in staging first for mission-critical systems
Monitor VPN performance post-update
Combine with SUSE’s Live Patching for minimal downtime
FAQ: ovpn-dco Update (2025-01697-1)
Q: Does this affect x86_64 systems?
A: No—only IBM Power/Z architectures require key updates.
Q: Is a reboot required?
A: Yes, for kernel module updates.
Q: How does this impact OpenVPN performance?
A: Negligible overhead; optimized DCO (Data Channel Offload) retains throughput.
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