fetchmail -- remote root/code injection from malicious POP3 server

2005-07-20T00:00:00
ID 3497D7BE-2FEF-45F4-8162-9063751B573A
Type freebsd
Reporter FreeBSD
Modified 2005-07-21T00:00:00

Description

fetchmail's POP3/UIDL code does not truncate received UIDs properly. A malicious or compromised POP3 server can thus corrupt fetchmail's stack and inject code when fetchmail is using UIDL, either through configuration, or as a result of certain server capabilities. Note that fetchmail is run as root on some sites, so an attack might compromise the root account and thus the whole machine.