CVE-2003-0542: Multiple stack-based buffer overflows in (1) mod_alias and (2) mod_rewrite for Apache before 1.3.29 allow a...

Security readout for executives and security teams

This is a legacy Apache HTTP Server flaw in modules used for aliases and URL rewriting. If an attacker can get a crafted regular expression into Apache configuration, the server may crash or run attacker-controlled code. The main business risk is old, unmanaged web infrastructure or hosting platforms that let untrusted users influence Apache config. Exposure is most likely in legacy Apache 1.3 deployments, vendor-packaged Apache from the 2003-2004 era, or systems where control panels, hosting automation, or delegated admins can write rewrite or alias configuration. Prioritize as legacy-risk cleanup, not an internet-wide emergency based on the supplied evidence. Escalate quickly if Apache 1.3 remains in production or untrusted users can affect rewrite or alias rules. Mitigation focus: Upgrade Apache HTTP Server to 1.3.29 or later where still applicable.; Apply the relevant operating-system vendor advisory package for affected legacy systems.; Remove or isolate unsupported Apache 1.3 installations from production exposure..

Prepared

Jun 30, 2026, 08:14 UTC (UTC+00:00)

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