SUSE releases a critical pam_pkcs11 security update patching CVE-2025-6018 (CVSS 8.6). Learn how to protect your Linux enterprise servers from authentication vulnerabilities. Includes patch instructions for SUSE 12 SP5 systems
SUSE Linux Enterprise Systems Receive Important Fix for Authentication Flaw
Key Details of the Security Update
Announcement ID: SUSE-SU-2025:02032-1
Release Date: June 20, 2025
Severity: Important (CVSS 8.6 – High Risk)
Affected Systems:
SUSE Linux Enterprise High Performance Computing 12 SP5
SUSE Linux Enterprise Server 12 SP5 (LTSS & Extended Security)
SUSE Linux Enterprise Server for SAP Applications 12 SP5
Vulnerability Breakdown: CVE-2025-6018
A critical security flaw in pam_pkcs11, a Pluggable Authentication Module (PAM) for PKCS#11 smart cards, has been resolved. This update removes pam_env from the authentication stack due to potential exploitation risks.
Why This Update Matters
Risk Level: 8.6 (CVSS 4.0) – Local privilege escalation risk.
Impact: Unauthorized access to sensitive systems if unpatched.
Patch Urgency: Recommended for enterprise Linux environments handling secure authentication.
How to Apply the Update
Recommended Methods
YaST Online Update (GUI)
Command Line (zypper)
zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-2025-2032=1
(See full patch commands below for your specific SUSE version.)
Affected Packages
| OS Version | Package Updates |
|---|---|
| SUSE Linux 12 SP5 LTSS | pam_pkcs11-0.6.8-7.13.1 (x86_64, aarch64) |
| Extended Security | Includes 32-bit & debug packages |
Why Enterprises Should Prioritize This Patch
Compliance Risks: Unpatched systems may violate GDPR, HIPAA, or NIST guidelines.
Smart Card Security: Critical for government, healthcare, and financial sectors.
Zero-Day Potential: Proactive patching prevents exploitation in secure environments.
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