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USN-642-1: Postfix vulnerabilities
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POSTDROP(1) General Commands Manual POSTDROP(1) NAME
postdrop - Postfix mail posting utility SYNOPSIS
postdrop [-rv] [-c config_dir] DESCRIPTION
The postdrop command creates a file in the maildrop directory and copies its standard input to the file. Options: -c The main.cf configuration file is in the named directory instead of the default configuration directory. See also the MAIL_CONFIG environment setting below. -r Use a Postfix-internal protocol for reading the message from standard input, and for reporting status information on standard out- put. This is currently the only supported method. -v Enable verbose logging for debugging purposes. Multiple -v options make the software increasingly verbose. SECURITY
The command is designed to run with set-group ID privileges, so that it can write to the maildrop queue directory and so that it can con- nect to Postfix daemon processes. DIAGNOSTICS
Fatal errors: malformed input, I/O error, out of memory. Problems are logged to syslogd(8) and to the standard error stream. When the input is incomplete, or when the process receives a HUP, INT, QUIT or TERM signal, the queue file is deleted. ENVIRONMENT
MAIL_CONFIG Directory with the main.cf file. In order to avoid exploitation of set-group ID privileges, it is not possible to specify arbitrary directory names. A non-standard directory is allowed only if the name is listed in the standard main.cf file, in the alternate_config_directories configuration parameter value. Only the super-user is allowed to specify arbitrary directory names. FILES
/var/spool/postfix, mail queue /etc/postfix, configuration files CONFIGURATION PARAMETERS
See the Postfix main.cf file for syntax details and for default values. Use the postfix reload command after a configuration change. import_environment List of names of environment parameters that can be imported from non-Postfix processes. queue_directory Top-level directory of the Postfix queue. This is also the root directory of Postfix daemons that run chrooted. SEE ALSO
sendmail(1) compatibility interface syslogd(8) system logging LICENSE
The Secure Mailer license must be distributed with this software. AUTHOR(S) Wietse Venema IBM T.J. Watson Research P.O. Box 704 Yorktown Heights, NY 10598, USA POSTDROP(1)
