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Security update for postfix

Knowledgebase

(Last modified: 27JAN2005)


solutions Security update for postfix SuSE Linux Maintenance Web (74a77f8e9ea0ae1e64c552833036853e)

Applies to

Package: postfix
Product(s): SUSE CORE 9 for x86
SUSE CORE 9 for Itanium Processor Family
SUSE CORE 9 for IBM POWER
SUSE CORE 9 for IBM S/390 31bit
SUSE CORE 9 for IBM zSeries 64bit
SUSE CORE 9 for AMD64 and Intel EM64T
Novell Linux Desktop 9 for x86
Patch: patch-9818
Release: 20050127
Obsoletes: none

Indications

Everyone using postfix should update.

Contraindications

None.

Problem description

These two bugs are caused by the IPv6 patch. They do NOT exist in plain postfix!
  • When running postfix chrooted (which is NOT the default) and using SuSEconfig to maintain the chroot jail or when not mounting /proc into the jail and "permit_mx_backup" is set into "smtpd_recipient_restrictions", postfix allows to relay mail to every destination that has a MX with AAAA-Records in DNS set (IPv6).
  • When setting "debug_peer_list" to a non-empty value and using lmtp delivery via unix domain sockets, the postfix lmtp process will segfault.
This bug is only valid on 64bit platforms:
  • postfix components can segfault because of non-portable reuse of variadic argument lists.

Solution

Please install the updates provided at the location noted below.

Installation notes

This update is provided as an RPM package that can easily be installed onto a running system by using this command:
rpm -Fvh postfix.rpm

links to download packages

Download Source Packages

Download the source code of the patches for maintained products.


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