Gld: Remote execution of arbitrary code

Background

Gld is a standalone greylisting server for Postfix.

Description

dong-hun discovered several buffer overflows in server.c, as well as several format string vulnerabilities in cnf.c.

Impact

An attacker could exploit this vulnerability to execute arbitrary code with the permissions of the user running Gld, the default user being root.

Workaround

There is no known workaround at this time.

Resolution

All Gld users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=mail-filter/gld-1.5"