Security update for avahi

Announcement ID:	SUSE-SU-2021:1493-1
Rating:	moderate
References:	bsc#1184521
Cross-References:	CVE-2021-3468
CVSS scores:	CVE-2021-3468 ( SUSE ): 6.2 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2021-3468 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected Products:	Basesystem Module 15-SP2 Basesystem Module 15-SP3 Desktop Applications Module 15-SP2 Desktop Applications Module 15-SP3 SUSE Linux Enterprise Desktop 15 SP2 SUSE Linux Enterprise Desktop 15 SP3 SUSE Linux Enterprise High Performance Computing 15 SP2 SUSE Linux Enterprise High Performance Computing 15 SP3 SUSE Linux Enterprise Micro 5.1 SUSE Linux Enterprise Micro 5.2 SUSE Linux Enterprise Real Time 15 SP2 SUSE Linux Enterprise Real Time 15 SP3 SUSE Linux Enterprise Server 15 SP2 SUSE Linux Enterprise Server 15 SP2 Business Critical Linux 15-SP2 SUSE Linux Enterprise Server 15 SP3 SUSE Linux Enterprise Server 15 SP3 Business Critical Linux 15-SP3 SUSE Linux Enterprise Server for SAP Applications 15 SP2 SUSE Linux Enterprise Server for SAP Applications 15 SP3 SUSE Manager Proxy 4.1 SUSE Manager Proxy 4.2 SUSE Manager Retail Branch Server 4.1 SUSE Manager Retail Branch Server 4.2 SUSE Manager Server 4.1 SUSE Manager Server 4.2 SUSE Package Hub 15 15-SP2 SUSE Package Hub 15 15-SP3

An update that solves one vulnerability can now be installed.

Description:

This update for avahi fixes the following issues:

• CVE-2021-3468: avoid infinite loop by handling HUP event in client_work (bsc#1184521).

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:

• Basesystem Module 15-SP2
  zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP2-2021-1493=1
• Basesystem Module 15-SP3
  zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP3-2021-1493=1
• Desktop Applications Module 15-SP2
  zypper in -t patch SUSE-SLE-Module-Desktop-Applications-15-SP2-2021-1493=1
• Desktop Applications Module 15-SP3
  zypper in -t patch SUSE-SLE-Module-Desktop-Applications-15-SP3-2021-1493=1
• SUSE Package Hub 15 15-SP2
  zypper in -t patch SUSE-SLE-Module-Packagehub-Subpackages-15-SP2-2021-1493=1
• SUSE Package Hub 15 15-SP3
  zypper in -t patch SUSE-SLE-Module-Packagehub-Subpackages-15-SP3-2021-1493=1

Package List:

• Basesystem Module 15-SP2 (aarch64 ppc64le s390x x86_64)
  • libavahi-ui-gtk3-0-debuginfo-0.7-3.9.1
  • libavahi-core7-debuginfo-0.7-3.9.1
  • libavahi-glib-devel-0.7-3.9.1
  • libavahi-client3-0.7-3.9.1
  • avahi-glib2-debugsource-0.7-3.9.1
  • libdns_sd-0.7-3.9.1
  • libavahi-devel-0.7-3.9.1
  • libavahi-common3-0.7-3.9.1
  • libavahi-gobject0-debuginfo-0.7-3.9.1
  • typelib-1_0-Avahi-0_6-0.7-3.9.1
  • avahi-utils-debuginfo-0.7-3.9.1
  • libavahi-ui0-debuginfo-0.7-3.9.1
  • avahi-utils-0.7-3.9.1
  • avahi-0.7-3.9.1
  • libavahi-client3-debuginfo-0.7-3.9.1
  • libdns_sd-debuginfo-0.7-3.9.1
  • avahi-compat-howl-devel-0.7-3.9.1
  • avahi-debuginfo-0.7-3.9.1
  • avahi-debugsource-0.7-3.9.1
  • libhowl0-debuginfo-0.7-3.9.1
  • libhowl0-0.7-3.9.1
  • libavahi-common3-debuginfo-0.7-3.9.1
  • avahi-compat-mDNSResponder-devel-0.7-3.9.1
  • libavahi-ui-gtk3-0-0.7-3.9.1
  • libavahi-core7-0.7-3.9.1
  • libavahi-ui0-0.7-3.9.1
  • libavahi-glib1-debuginfo-0.7-3.9.1
  • libavahi-gobject0-0.7-3.9.1
  • libavahi-glib1-0.7-3.9.1
• Basesystem Module 15-SP2 (noarch)
  • avahi-lang-0.7-3.9.1
• Basesystem Module 15-SP2 (x86_64)
  • libavahi-client3-32bit-0.7-3.9.1
  • libavahi-common3-32bit-0.7-3.9.1
  • libavahi-client3-32bit-debuginfo-0.7-3.9.1
  • avahi-32bit-debuginfo-0.7-3.9.1
  • libavahi-common3-32bit-debuginfo-0.7-3.9.1
• Basesystem Module 15-SP3 (aarch64 ppc64le s390x x86_64)
  • libavahi-ui-gtk3-0-debuginfo-0.7-3.9.1
  • libavahi-core7-debuginfo-0.7-3.9.1
  • libavahi-glib-devel-0.7-3.9.1
  • libavahi-client3-0.7-3.9.1
  • avahi-glib2-debugsource-0.7-3.9.1
  • libdns_sd-0.7-3.9.1
  • libavahi-devel-0.7-3.9.1
  • libavahi-common3-0.7-3.9.1
  • libavahi-gobject0-debuginfo-0.7-3.9.1
  • typelib-1_0-Avahi-0_6-0.7-3.9.1
  • avahi-utils-debuginfo-0.7-3.9.1
  • libavahi-ui0-debuginfo-0.7-3.9.1
  • avahi-utils-0.7-3.9.1
  • avahi-0.7-3.9.1
  • libavahi-client3-debuginfo-0.7-3.9.1
  • libdns_sd-debuginfo-0.7-3.9.1
  • avahi-compat-howl-devel-0.7-3.9.1
  • avahi-debuginfo-0.7-3.9.1
  • avahi-debugsource-0.7-3.9.1
  • libhowl0-debuginfo-0.7-3.9.1
  • libhowl0-0.7-3.9.1
  • libavahi-common3-debuginfo-0.7-3.9.1
  • avahi-compat-mDNSResponder-devel-0.7-3.9.1
  • libavahi-ui-gtk3-0-0.7-3.9.1
  • libavahi-core7-0.7-3.9.1
  • libavahi-ui0-0.7-3.9.1
  • libavahi-glib1-debuginfo-0.7-3.9.1
  • libavahi-gobject0-0.7-3.9.1
  • libavahi-glib1-0.7-3.9.1
• Basesystem Module 15-SP3 (noarch)
  • avahi-lang-0.7-3.9.1
• Basesystem Module 15-SP3 (x86_64)
  • libavahi-client3-32bit-0.7-3.9.1
  • libavahi-common3-32bit-0.7-3.9.1
  • libavahi-client3-32bit-debuginfo-0.7-3.9.1
  • avahi-32bit-debuginfo-0.7-3.9.1
  • libavahi-common3-32bit-debuginfo-0.7-3.9.1
• Desktop Applications Module 15-SP2 (aarch64 ppc64le s390x x86_64)
  • libavahi-gobject-devel-0.7-3.9.1
  • avahi-utils-gtk-debuginfo-0.7-3.9.1
  • avahi-debuginfo-0.7-3.9.1
  • avahi-debugsource-0.7-3.9.1
  • avahi-glib2-debugsource-0.7-3.9.1
  • avahi-autoipd-0.7-3.9.1
  • avahi-utils-gtk-0.7-3.9.1
  • avahi-autoipd-debuginfo-0.7-3.9.1
• Desktop Applications Module 15-SP3 (aarch64 ppc64le s390x x86_64)
  • libavahi-gobject-devel-0.7-3.9.1
  • avahi-utils-gtk-debuginfo-0.7-3.9.1
  • avahi-debuginfo-0.7-3.9.1
  • avahi-debugsource-0.7-3.9.1
  • avahi-glib2-debugsource-0.7-3.9.1
  • avahi-autoipd-0.7-3.9.1
  • avahi-utils-gtk-0.7-3.9.1
  • avahi-autoipd-debuginfo-0.7-3.9.1
• SUSE Package Hub 15 15-SP2 (aarch64 ppc64le s390x x86_64)
  • avahi-debuginfo-0.7-3.9.1
  • avahi-debugsource-0.7-3.9.1
  • python3-avahi-0.7-3.9.1
• SUSE Package Hub 15 15-SP3 (aarch64 ppc64le s390x x86_64)
  • avahi-debuginfo-0.7-3.9.1
  • avahi-debugsource-0.7-3.9.1
  • python3-avahi-0.7-3.9.1

References:

• https://www.suse.com/security/cve/CVE-2021-3468.html
• https://bugzilla.suse.com/show_bug.cgi?id=1184521