CVE-2005-0091: Unknown vulnerability in the Red Hat Enterprise Linux 4 kernel 4GB/4GB split patch, when using the hugemem...

Security readout for executives and security teams

This is a local privilege-escalation issue in the Red Hat Enterprise Linux 4 hugemem kernel path. A user who already has local access could read or write kernel memory and potentially become privileged. The bundle does not show remote exploitation or current active exploitation. Exposure appears limited to legacy Red Hat Enterprise Linux 4 systems using the hugemem kernel with the 4GB/4GB split patch. The source bundle’s affected-product fields are incomplete, so confirm against Red Hat advisory and asset inventory. Prioritize any internet-facing, shared, or business-critical legacy RHEL 4 systems. The issue requires local access, but successful exploitation would undermine host integrity by allowing privilege escalation to kernel-level control. Mitigation focus: Review Red Hat RHSA-2005:092 for the vendor-confirmed remediation path.; Update or replace affected RHEL 4 hugemem kernel packages per vendor guidance.; Prioritize decommissioning legacy systems if supported updates are unavailable..

Prepared

Jun 30, 2026, 00:10 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.