Test ID:	1.3.6.1.4.1.25623.1.1.12.2005.74.1
Category:	Ubuntu Local Security Checks
Title:	Ubuntu: Security Advisory (USN-74-1)
Summary:	The remote host is missing an update for the 'postfix' package(s) announced via the USN-74-1 advisory.
Description:	Summary: The remote host is missing an update for the 'postfix' package(s) announced via the USN-74-1 advisory. Vulnerability Insight: Jean-Samuel Reynaud noticed a programming error in the IPv6 handling code of Postfix when /proc/net/if_inet6 is not available (which is the case in Ubuntu since Postfix runs in a chroot). If 'permit_mx_backup' was enabled in the 'smtpd_recipient_restrictions', Postfix turned into an open relay, i. e. erroneously permitted the delivery of arbitrary mail to any MX host which has an IPv6 address. Affected Software/OS: 'postfix' package(s) on Ubuntu 4.10. Solution: Please install the updated package(s). CVSS Score: 5.0 CVSS Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N
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