Security update for postfix

Announcement ID:	SUSE-SU-2023:4981-1
Rating:	important
References:	bsc#1218304 bsc#1218314
Cross-References:	CVE-2023-51764
CVSS scores:	CVE-2023-51764 ( SUSE ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Affected Products:	Basesystem Module 15-SP5 Legacy Module 15-SP5 openSUSE Leap 15.5 Server Applications Module 15-SP5 SUSE Linux Enterprise Desktop 15 SP5 SUSE Linux Enterprise High Performance Computing 15 SP5 SUSE Linux Enterprise Real Time 15 SP5 SUSE Linux Enterprise Server 15 SP5 SUSE Linux Enterprise Server for SAP Applications 15 SP5

An update that solves one vulnerability and has one security fix can now be installed.

Description:

This update for postfix fixes the following issues:

• CVE-2023-51764: Fixed new SMTP smuggling attack (bsc#1218304).

Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:

• openSUSE Leap 15.5
  zypper in -t patch SUSE-2023-4981=1 openSUSE-SLE-15.5-2023-4981=1
• Basesystem Module 15-SP5
  zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP5-2023-4981=1
• Legacy Module 15-SP5
  zypper in -t patch SUSE-SLE-Module-Legacy-15-SP5-2023-4981=1
• Server Applications Module 15-SP5
  zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP5-2023-4981=1

Package List:

• openSUSE Leap 15.5 (aarch64 ppc64le s390x x86_64 i586)
  • postfix-bdb-debugsource-3.7.3-150500.3.11.1
  • postfix-debugsource-3.7.3-150500.3.11.1
  • postfix-3.7.3-150500.3.11.1
  • postfix-debuginfo-3.7.3-150500.3.11.1
  • postfix-ldap-debuginfo-3.7.3-150500.3.11.1
  • postfix-postgresql-3.7.3-150500.3.11.1
  • postfix-bdb-debuginfo-3.7.3-150500.3.11.1
  • postfix-ldap-3.7.3-150500.3.11.1
  • postfix-postgresql-debuginfo-3.7.3-150500.3.11.1
  • postfix-bdb-lmdb-debuginfo-3.7.3-150500.3.11.1
  • postfix-bdb-3.7.3-150500.3.11.1
  • postfix-bdb-lmdb-3.7.3-150500.3.11.1
  • postfix-devel-3.7.3-150500.3.11.1
  • postfix-mysql-3.7.3-150500.3.11.1
  • postfix-mysql-debuginfo-3.7.3-150500.3.11.1
• openSUSE Leap 15.5 (noarch)
  • postfix-doc-3.7.3-150500.3.11.1
• Basesystem Module 15-SP5 (aarch64 ppc64le s390x x86_64)
  • postfix-debugsource-3.7.3-150500.3.11.1
  • postfix-3.7.3-150500.3.11.1
  • postfix-debuginfo-3.7.3-150500.3.11.1
  • postfix-ldap-debuginfo-3.7.3-150500.3.11.1
  • postfix-ldap-3.7.3-150500.3.11.1
  • postfix-devel-3.7.3-150500.3.11.1
• Basesystem Module 15-SP5 (noarch)
  • postfix-doc-3.7.3-150500.3.11.1
• Legacy Module 15-SP5 (aarch64 ppc64le s390x x86_64)
  • postfix-bdb-debugsource-3.7.3-150500.3.11.1
  • postfix-bdb-debuginfo-3.7.3-150500.3.11.1
  • postfix-bdb-lmdb-debuginfo-3.7.3-150500.3.11.1
  • postfix-bdb-3.7.3-150500.3.11.1
  • postfix-bdb-lmdb-3.7.3-150500.3.11.1
• Server Applications Module 15-SP5 (aarch64 ppc64le s390x x86_64)
  • postfix-debuginfo-3.7.3-150500.3.11.1
  • postfix-debugsource-3.7.3-150500.3.11.1
  • postfix-mysql-3.7.3-150500.3.11.1
  • postfix-mysql-debuginfo-3.7.3-150500.3.11.1

References:

• https://www.suse.com/security/cve/CVE-2023-51764.html
• https://bugzilla.suse.com/show_bug.cgi?id=1218304
• https://bugzilla.suse.com/show_bug.cgi?id=1218314