Postfix: Privilege escalation

2017-09-24T00:00:00
ID GLSA-201709-20
Type gentoo
Reporter Gentoo Foundation
Modified 2017-09-24T00:00:00

Description

Background

Postfix is a mail server and an alternative to the widely-used Sendmail program.

Description

By default, Berkeley DB reads a DB_CONFIG configuration file from the current working directory. This is an undocumented behavior.

Impact

A local attacker, by using a specially crafted DG_CONFIG file, could possibly escalate privileges to the root group.

Workaround

There is no known workaround at this time.

Resolution

All Postfix users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=mail-mta/postfix-3.1.6"