CVE-2004-0564: Roaring Penguin pppoe (rp-ppoe), if installed or configured to run setuid root contrary to its design, allo...

Security readout for executives and security teams

CVE-2004-0564 concerns rp-pppoe only when the pppoe program is installed or configured to run setuid root, which the developer said is outside its design. In that unsafe configuration, a local user may overwrite arbitrary files, creating potential integrity and privilege-escalation risk. Exposure is most likely on legacy Linux or Unix systems with rp-pppoe installed and the pppoe binary granted setuid-root privileges. Standard installations that do not run pppoe setuid root may be outside the CVE scope, based on the CVE note. Treat this as a targeted legacy-configuration cleanup, not an internet-wide emergency. Prioritize systems with local multi-user access or sensitive files, especially old Linux distributions still using rp-pppoe. Mitigation focus: Remove setuid-root privileges from pppoe unless vendor guidance explicitly requires them.; Apply relevant rp-pppoe updates from the operating-system vendor for affected legacy systems.; Review vendor advisories before changing production PPPoE authentication or network startup behavior..

Prepared

Jun 30, 2026, 02:24 UTC (UTC+00:00)

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