CLSA-2026-1770804736 Fix CVE(s): CVE-2025-69421

SECURITY UPDATE: A NULL pointer dereference can trigger a crash which leads to Denial of Service for an application processing PKCS12 files - debian/patches/CVE-2025-69421.patch: fix NULL pointer dereference in PKCS12itemdecryptd2i by adding NULL check for oct parameter - CVE-2025-69421...