SUSE Security Update: Security update for avahi
______________________________________________________________________________

Announcement ID:    SUSE-SU-2021:1493-1
Rating:             moderate
References:         #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

Affected Products:
                    SUSE Linux Enterprise Module for Packagehub Subpackages 15-SP3
                    SUSE Linux Enterprise Module for Packagehub Subpackages 15-SP2
                    SUSE Linux Enterprise Module for Desktop Applications 15-SP3
                    SUSE Linux Enterprise Module for Desktop Applications 15-SP2
                    SUSE Linux Enterprise Module for Basesystem 15-SP3
                    SUSE Linux Enterprise Module for Basesystem 15-SP2
______________________________________________________________________________

   An update that fixes one vulnerability is now available.

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 Security Update use the SUSE recommended installation methods
   like YaST online_update or "zypper patch".

   Alternatively you can run the command listed for your product:

   - SUSE Linux Enterprise Module for Packagehub Subpackages 15-SP3:

      zypper in -t patch SUSE-SLE-Module-Packagehub-Subpackages-15-SP3-2021-1493=1

   - SUSE Linux Enterprise Module for Packagehub Subpackages 15-SP2:

      zypper in -t patch SUSE-SLE-Module-Packagehub-Subpackages-15-SP2-2021-1493=1

   - SUSE Linux Enterprise Module for Desktop Applications 15-SP3:

      zypper in -t patch SUSE-SLE-Module-Desktop-Applications-15-SP3-2021-1493=1

   - SUSE Linux Enterprise Module for Desktop Applications 15-SP2:

      zypper in -t patch SUSE-SLE-Module-Desktop-Applications-15-SP2-2021-1493=1

   - SUSE Linux Enterprise Module for Basesystem 15-SP3:

      zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP3-2021-1493=1

   - SUSE Linux Enterprise Module for Basesystem 15-SP2:

      zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP2-2021-1493=1



Package List:

   - SUSE Linux Enterprise Module for Packagehub Subpackages 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

   - SUSE Linux Enterprise Module for Packagehub Subpackages 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 Linux Enterprise Module for Desktop Applications 15-SP3 (aarch64 ppc64le s390x x86_64):

      avahi-autoipd-0.7-3.9.1
      avahi-autoipd-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-utils-gtk-0.7-3.9.1
      avahi-utils-gtk-debuginfo-0.7-3.9.1
      libavahi-gobject-devel-0.7-3.9.1

   - SUSE Linux Enterprise Module for Desktop Applications 15-SP2 (aarch64 ppc64le s390x x86_64):

      avahi-autoipd-0.7-3.9.1
      avahi-autoipd-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-utils-gtk-0.7-3.9.1
      avahi-utils-gtk-debuginfo-0.7-3.9.1
      libavahi-gobject-devel-0.7-3.9.1

   - SUSE Linux Enterprise Module for Basesystem 15-SP3 (aarch64 ppc64le s390x x86_64):

      avahi-0.7-3.9.1
      avahi-compat-howl-devel-0.7-3.9.1
      avahi-compat-mDNSResponder-devel-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-utils-0.7-3.9.1
      avahi-utils-debuginfo-0.7-3.9.1
      libavahi-client3-0.7-3.9.1
      libavahi-client3-debuginfo-0.7-3.9.1
      libavahi-common3-0.7-3.9.1
      libavahi-common3-debuginfo-0.7-3.9.1
      libavahi-core7-0.7-3.9.1
      libavahi-core7-debuginfo-0.7-3.9.1
      libavahi-devel-0.7-3.9.1
      libavahi-glib-devel-0.7-3.9.1
      libavahi-glib1-0.7-3.9.1
      libavahi-glib1-debuginfo-0.7-3.9.1
      libavahi-gobject0-0.7-3.9.1
      libavahi-gobject0-debuginfo-0.7-3.9.1
      libavahi-ui-gtk3-0-0.7-3.9.1
      libavahi-ui-gtk3-0-debuginfo-0.7-3.9.1
      libavahi-ui0-0.7-3.9.1
      libavahi-ui0-debuginfo-0.7-3.9.1
      libdns_sd-0.7-3.9.1
      libdns_sd-debuginfo-0.7-3.9.1
      libhowl0-0.7-3.9.1
      libhowl0-debuginfo-0.7-3.9.1
      typelib-1_0-Avahi-0_6-0.7-3.9.1

   - SUSE Linux Enterprise Module for Basesystem 15-SP3 (x86_64):

      avahi-32bit-debuginfo-0.7-3.9.1
      libavahi-client3-32bit-0.7-3.9.1
      libavahi-client3-32bit-debuginfo-0.7-3.9.1
      libavahi-common3-32bit-0.7-3.9.1
      libavahi-common3-32bit-debuginfo-0.7-3.9.1

   - SUSE Linux Enterprise Module for Basesystem 15-SP3 (noarch):

      avahi-lang-0.7-3.9.1

   - SUSE Linux Enterprise Module for Basesystem 15-SP2 (aarch64 ppc64le s390x x86_64):

      avahi-0.7-3.9.1
      avahi-compat-howl-devel-0.7-3.9.1
      avahi-compat-mDNSResponder-devel-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-utils-0.7-3.9.1
      avahi-utils-debuginfo-0.7-3.9.1
      libavahi-client3-0.7-3.9.1
      libavahi-client3-debuginfo-0.7-3.9.1
      libavahi-common3-0.7-3.9.1
      libavahi-common3-debuginfo-0.7-3.9.1
      libavahi-core7-0.7-3.9.1
      libavahi-core7-debuginfo-0.7-3.9.1
      libavahi-devel-0.7-3.9.1
      libavahi-glib-devel-0.7-3.9.1
      libavahi-glib1-0.7-3.9.1
      libavahi-glib1-debuginfo-0.7-3.9.1
      libavahi-gobject0-0.7-3.9.1
      libavahi-gobject0-debuginfo-0.7-3.9.1
      libavahi-ui-gtk3-0-0.7-3.9.1
      libavahi-ui-gtk3-0-debuginfo-0.7-3.9.1
      libavahi-ui0-0.7-3.9.1
      libavahi-ui0-debuginfo-0.7-3.9.1
      libdns_sd-0.7-3.9.1
      libdns_sd-debuginfo-0.7-3.9.1
      libhowl0-0.7-3.9.1
      libhowl0-debuginfo-0.7-3.9.1
      typelib-1_0-Avahi-0_6-0.7-3.9.1

   - SUSE Linux Enterprise Module for Basesystem 15-SP2 (noarch):

      avahi-lang-0.7-3.9.1

   - SUSE Linux Enterprise Module for Basesystem 15-SP2 (x86_64):

      avahi-32bit-debuginfo-0.7-3.9.1
      libavahi-client3-32bit-0.7-3.9.1
      libavahi-client3-32bit-debuginfo-0.7-3.9.1
      libavahi-common3-32bit-0.7-3.9.1
      libavahi-common3-32bit-debuginfo-0.7-3.9.1


References:

   https://www.suse.com/security/cve/CVE-2021-3468.html
   https://bugzilla.suse.com/1184521