CVE-2004-1058: Race condition in Linux kernel 2.6 allows local users to read the environment variables of another process...

Security readout for executives and security teams

CVE-2004-1058 is an old Linux kernel 2.6 race condition that could let a local user see environment data from another process while it is starting. The business concern is leakage of secrets placed in environment variables, such as credentials or tokens, on shared systems. Exposure is most plausible on legacy Linux 2.6 systems, especially multi-user servers or systems where untrusted users can run local processes. Modern systems are unlikely to be affected unless they retain old vendor kernels covered by the cited advisories. Treat this as a legacy exposure cleanup item, not an emergency internet-facing incident. Prioritize if any shared or multi-tenant Linux 2.6 systems remain in production or handle credentials through environment variables. Mitigation focus: Identify systems running Linux kernel 2.6 or vendor kernels from cited advisories.; Apply the relevant vendor kernel security update where available.; Restrict local shell access to trusted users on potentially affected hosts..

Prepared

Jun 30, 2026, 01:53 UTC (UTC+00:00)

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