CVE-2005-0403: init_dev in tty_io.c in the Red Hat backport of NPTL to Red Hat Enterprise Linux 3 does not properly clear...

Security readout for executives and security teams

This is an old local Linux issue affecting the Red Hat Enterprise Linux 3 NPTL backport. A local user may crash the system or possibly gain access to a terminal session because controlling TTY state was not cleared correctly. Business impact is mainly legacy system availability and user-session confidentiality. Exposure is most likely limited to legacy Red Hat Enterprise Linux 3 systems using the affected NPTL backport. Modern systems are not identified as affected in the provided sources. Organizations with long-lived appliances or unsupported servers should verify whether RHEL 3 remains in service. Treat this as a legacy-risk cleanup item unless RHEL 3 systems still support critical operations. If any affected host remains active, prioritize remediation because local users could cause outages and possibly access terminal state. No active exploitation evidence is provided. Mitigation focus: Review Red Hat advisory RHSA-2005:293 for vendor-approved fixes.; Patch or retire affected Red Hat Enterprise Linux 3 systems.; Restrict local shell access on any unpatched legacy hosts..

Prepared

Jun 29, 2026, 17:57 UTC (UTC+00:00)

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