Security update for avahi SUSE Patch security@suse.de SUSE Security Team SUSE-SU-2021:1494-1 Final 1 1 2021-05-04T15:14:37Z current 2021-05-04T15:14:37Z 2021-05-04T15:14:37Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for avahi This update for avahi fixes the following issues: - CVE-2021-3468: avoid infinite loop by handling HUP event in client_work (bsc#1184521). The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). Image SLES12-SP4-Azure-BYOS-2021-1494,Image SLES12-SP4-EC2-HVM-BYOS-2021-1494,Image SLES12-SP4-GCE-BYOS-2021-1494,Image SLES12-SP4-SAP-Azure-2021-1494,Image SLES12-SP4-SAP-Azure-BYOS-2021-1494,Image SLES12-SP4-SAP-Azure-LI-BYOS-Production-2021-1494,Image SLES12-SP4-SAP-Azure-VLI-BYOS-Production-2021-1494,Image SLES12-SP4-SAP-EC2-HVM-2021-1494,Image SLES12-SP4-SAP-EC2-HVM-BYOS-2021-1494,Image SLES12-SP4-SAP-GCE-2021-1494,Image SLES12-SP4-SAP-GCE-BYOS-2021-1494,Image SLES12-SP5-Azure-BYOS-2021-1494,Image SLES12-SP5-Azure-Basic-On-Demand-2021-1494,Image SLES12-SP5-Azure-HPC-BYOS-2021-1494,Image SLES12-SP5-Azure-HPC-On-Demand-2021-1494,Image SLES12-SP5-Azure-SAP-BYOS-2021-1494,Image SLES12-SP5-Azure-SAP-On-Demand-2021-1494,Image SLES12-SP5-Azure-Standard-On-Demand-2021-1494,Image SLES12-SP5-EC2-BYOS-2021-1494,Image SLES12-SP5-EC2-ECS-On-Demand-2021-1494,Image SLES12-SP5-EC2-On-Demand-2021-1494,Image SLES12-SP5-EC2-SAP-BYOS-2021-1494,Image SLES12-SP5-EC2-SAP-On-Demand-2021-1494,Image SLES12-SP5-GCE-BYOS-2021-1494,Image SLES12-SP5-GCE-On-Demand-2021-1494,Image SLES12-SP5-GCE-SAP-BYOS-2021-1494,Image SLES12-SP5-GCE-SAP-On-Demand-2021-1494,Image SLES12-SP5-OCI-BYOS-BYOS-2021-1494,Image SLES12-SP5-OCI-BYOS-SAP-BYOS-2021-1494,Image SLES12-SP5-SAP-Azure-LI-BYOS-Production-2021-1494,Image SLES12-SP5-SAP-Azure-VLI-BYOS-Production-2021-1494,SUSE-2021-1494,SUSE-SLE-SDK-12-SP5-2021-1494,SUSE-SLE-SERVER-12-SP5-2021-1494,SUSE-SLE-WE-12-SP5-2021-1494 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://www.suse.com/support/update/announcement/2021/suse-su-20211494-1/ Link for SUSE-SU-2021:1494-1 https://lists.suse.com/pipermail/sle-security-updates/2021-May/008735.html E-Mail link for SUSE-SU-2021:1494-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1184521 SUSE Bug 1184521 https://www.suse.com/security/cve/CVE-2021-3468/ SUSE CVE CVE-2021-3468 page Image SLES12-SP4-Azure-BYOS Image SLES12-SP4-EC2-HVM-BYOS Image SLES12-SP4-GCE-BYOS Image SLES12-SP4-SAP-Azure Image SLES12-SP4-SAP-Azure-BYOS Image SLES12-SP4-SAP-Azure-LI-BYOS-Production Image SLES12-SP4-SAP-Azure-VLI-BYOS-Production Image SLES12-SP4-SAP-EC2-HVM Image SLES12-SP4-SAP-EC2-HVM-BYOS Image SLES12-SP4-SAP-GCE Image SLES12-SP4-SAP-GCE-BYOS Image SLES12-SP5-Azure-BYOS Image SLES12-SP5-Azure-Basic-On-Demand Image SLES12-SP5-Azure-HPC-BYOS Image SLES12-SP5-Azure-HPC-On-Demand Image SLES12-SP5-Azure-SAP-BYOS Image SLES12-SP5-Azure-SAP-On-Demand Image SLES12-SP5-Azure-Standard-On-Demand Image SLES12-SP5-EC2-BYOS Image SLES12-SP5-EC2-ECS-On-Demand Image SLES12-SP5-EC2-On-Demand Image SLES12-SP5-EC2-SAP-BYOS Image SLES12-SP5-EC2-SAP-On-Demand Image SLES12-SP5-GCE-BYOS Image SLES12-SP5-GCE-On-Demand Image SLES12-SP5-GCE-SAP-BYOS Image SLES12-SP5-GCE-SAP-On-Demand Image SLES12-SP5-OCI-BYOS-BYOS Image SLES12-SP5-OCI-BYOS-SAP-BYOS Image SLES12-SP5-SAP-Azure-LI-BYOS-Production Image SLES12-SP5-SAP-Azure-VLI-BYOS-Production SUSE Linux Enterprise Server 12 SP5 SUSE Linux Enterprise Server for SAP Applications 12 SP5 SUSE Linux Enterprise Software Development Kit 12 SP5 SUSE Linux Enterprise Workstation Extension 12 SP5 libavahi-client3-0.6.32-32.15.1 libavahi-common3-0.6.32-32.15.1 avahi-0.6.32-32.15.1 avahi-autoipd-0.6.32-32.15.1 avahi-compat-howl-devel-0.6.32-32.15.1 avahi-compat-mDNSResponder-devel-0.6.32-32.15.1 avahi-lang-0.6.32-32.15.1 avahi-utils-0.6.32-32.15.1 avahi-utils-gtk-0.6.32-32.15.1 libavahi-client3-32bit-0.6.32-32.15.1 libavahi-client3-64bit-0.6.32-32.15.1 libavahi-common3-32bit-0.6.32-32.15.1 libavahi-common3-64bit-0.6.32-32.15.1 libavahi-core7-0.6.32-32.15.1 libavahi-devel-0.6.32-32.15.1 libavahi-glib-devel-0.6.32-32.15.1 libavahi-glib1-0.6.32-32.15.1 libavahi-glib1-32bit-0.6.32-32.15.1 libavahi-glib1-64bit-0.6.32-32.15.1 libavahi-gobject-devel-0.6.32-32.15.1 libavahi-gobject0-0.6.32-32.15.1 libavahi-qt4-1-0.6.32-32.15.1 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12 SP5 libavahi-client3-32bit-0.6.32-32.15.1 as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP5 libavahi-common3-0.6.32-32.15.1 as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP5 libavahi-common3-32bit-0.6.32-32.15.1 as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP5 libavahi-core7-0.6.32-32.15.1 as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP5 libavahi-glib1-0.6.32-32.15.1 as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP5 libavahi-glib1-32bit-0.6.32-32.15.1 as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP5 libdns_sd-0.6.32-32.15.1 as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP5 libdns_sd-32bit-0.6.32-32.15.1 as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP5 avahi-compat-howl-devel-0.6.32-32.15.1 as a component of SUSE Linux Enterprise Software Development Kit 12 SP5 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SUSE Linux Enterprise Software Development Kit 12 SP5 libavahi-gobject0-0.6.32-32.15.1 as a component of SUSE Linux Enterprise Workstation Extension 12 SP5 libavahi-ui-gtk3-0-0.6.32-32.15.1 as a component of SUSE Linux Enterprise Workstation Extension 12 SP5 libavahi-ui0-0.6.32-32.15.1 as a component of SUSE Linux Enterprise Workstation Extension 12 SP5 A flaw was found in avahi in versions 0.6 up to 0.8. The event used to signal the termination of the client connection on the avahi Unix socket is not correctly handled in the client_work function, allowing a local attacker to trigger an infinite loop. The highest threat from this vulnerability is to the availability of the avahi service, which becomes unresponsive after this flaw is triggered. CVE-2021-3468 Image SLES12-SP4-Azure-BYOS:libavahi-client3-0.6.32-32.15.1 Image SLES12-SP4-Azure-BYOS:libavahi-common3-0.6.32-32.15.1 Image SLES12-SP4-EC2-HVM-BYOS:libavahi-client3-0.6.32-32.15.1 Image SLES12-SP4-EC2-HVM-BYOS:libavahi-common3-0.6.32-32.15.1 Image SLES12-SP4-GCE-BYOS:libavahi-client3-0.6.32-32.15.1 Image SLES12-SP4-GCE-BYOS:libavahi-common3-0.6.32-32.15.1 Image SLES12-SP4-SAP-Azure-BYOS:libavahi-client3-0.6.32-32.15.1 Image SLES12-SP4-SAP-Azure-BYOS:libavahi-common3-0.6.32-32.15.1 Image SLES12-SP4-SAP-Azure-LI-BYOS-Production:libavahi-client3-0.6.32-32.15.1 Image SLES12-SP4-SAP-Azure-LI-BYOS-Production:libavahi-common3-0.6.32-32.15.1 Image SLES12-SP4-SAP-Azure-VLI-BYOS-Production:libavahi-client3-0.6.32-32.15.1 Image SLES12-SP4-SAP-Azure-VLI-BYOS-Production:libavahi-common3-0.6.32-32.15.1 Image SLES12-SP4-SAP-Azure:libavahi-client3-0.6.32-32.15.1 Image SLES12-SP4-SAP-Azure:libavahi-common3-0.6.32-32.15.1 Image SLES12-SP4-SAP-EC2-HVM-BYOS:libavahi-client3-0.6.32-32.15.1 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SLES12-SP5-Azure-SAP-BYOS:libavahi-client3-0.6.32-32.15.1 Image SLES12-SP5-Azure-SAP-BYOS:libavahi-common3-0.6.32-32.15.1 Image SLES12-SP5-Azure-SAP-On-Demand:libavahi-client3-0.6.32-32.15.1 Image SLES12-SP5-Azure-SAP-On-Demand:libavahi-common3-0.6.32-32.15.1 Image SLES12-SP5-Azure-Standard-On-Demand:libavahi-client3-0.6.32-32.15.1 Image SLES12-SP5-Azure-Standard-On-Demand:libavahi-common3-0.6.32-32.15.1 Image SLES12-SP5-EC2-BYOS:libavahi-client3-0.6.32-32.15.1 Image SLES12-SP5-EC2-BYOS:libavahi-common3-0.6.32-32.15.1 Image SLES12-SP5-EC2-ECS-On-Demand:libavahi-client3-0.6.32-32.15.1 Image SLES12-SP5-EC2-ECS-On-Demand:libavahi-common3-0.6.32-32.15.1 Image SLES12-SP5-EC2-On-Demand:libavahi-client3-0.6.32-32.15.1 Image SLES12-SP5-EC2-On-Demand:libavahi-common3-0.6.32-32.15.1 Image SLES12-SP5-EC2-SAP-BYOS:libavahi-client3-0.6.32-32.15.1 Image SLES12-SP5-EC2-SAP-BYOS:libavahi-common3-0.6.32-32.15.1 Image SLES12-SP5-EC2-SAP-On-Demand:libavahi-client3-0.6.32-32.15.1 Image SLES12-SP5-EC2-SAP-On-Demand:libavahi-common3-0.6.32-32.15.1 Image SLES12-SP5-GCE-BYOS:libavahi-client3-0.6.32-32.15.1 Image SLES12-SP5-GCE-BYOS:libavahi-common3-0.6.32-32.15.1 Image SLES12-SP5-GCE-On-Demand:libavahi-client3-0.6.32-32.15.1 Image SLES12-SP5-GCE-On-Demand:libavahi-common3-0.6.32-32.15.1 Image SLES12-SP5-GCE-SAP-BYOS:libavahi-client3-0.6.32-32.15.1 Image SLES12-SP5-GCE-SAP-BYOS:libavahi-common3-0.6.32-32.15.1 Image SLES12-SP5-GCE-SAP-On-Demand:libavahi-client3-0.6.32-32.15.1 Image SLES12-SP5-GCE-SAP-On-Demand:libavahi-common3-0.6.32-32.15.1 Image SLES12-SP5-OCI-BYOS-BYOS:libavahi-client3-0.6.32-32.15.1 Image SLES12-SP5-OCI-BYOS-BYOS:libavahi-common3-0.6.32-32.15.1 Image SLES12-SP5-OCI-BYOS-SAP-BYOS:libavahi-client3-0.6.32-32.15.1 Image SLES12-SP5-OCI-BYOS-SAP-BYOS:libavahi-common3-0.6.32-32.15.1 Image SLES12-SP5-SAP-Azure-LI-BYOS-Production:libavahi-client3-0.6.32-32.15.1 Image SLES12-SP5-SAP-Azure-LI-BYOS-Production:libavahi-common3-0.6.32-32.15.1 Image SLES12-SP5-SAP-Azure-VLI-BYOS-Production:libavahi-client3-0.6.32-32.15.1 Image SLES12-SP5-SAP-Azure-VLI-BYOS-Production:libavahi-common3-0.6.32-32.15.1 SUSE Linux Enterprise Server 12 SP5:avahi-0.6.32-32.15.1 SUSE Linux Enterprise Server 12 SP5:avahi-lang-0.6.32-32.15.1 SUSE Linux Enterprise Server 12 SP5:avahi-utils-0.6.32-32.15.1 SUSE Linux Enterprise Server 12 SP5:libavahi-client3-0.6.32-32.15.1 SUSE Linux Enterprise Server 12 SP5:libavahi-client3-32bit-0.6.32-32.15.1 SUSE Linux Enterprise Server 12 SP5:libavahi-common3-0.6.32-32.15.1 SUSE Linux Enterprise Server 12 SP5:libavahi-common3-32bit-0.6.32-32.15.1 SUSE Linux Enterprise Server 12 SP5:libavahi-core7-0.6.32-32.15.1 SUSE Linux Enterprise Server 12 SP5:libavahi-glib1-0.6.32-32.15.1 SUSE Linux Enterprise Server 12 SP5:libavahi-glib1-32bit-0.6.32-32.15.1 SUSE Linux Enterprise Server 12 SP5:libdns_sd-0.6.32-32.15.1 SUSE Linux Enterprise Server 12 SP5:libdns_sd-32bit-0.6.32-32.15.1 SUSE Linux Enterprise Server for SAP Applications 12 SP5:avahi-0.6.32-32.15.1 SUSE Linux Enterprise Server for SAP Applications 12 SP5:avahi-lang-0.6.32-32.15.1 SUSE Linux Enterprise Server for SAP Applications 12 SP5:avahi-utils-0.6.32-32.15.1 SUSE Linux Enterprise Server for SAP Applications 12 SP5:libavahi-client3-0.6.32-32.15.1 SUSE Linux Enterprise Server for SAP Applications 12 SP5:libavahi-client3-32bit-0.6.32-32.15.1 SUSE Linux Enterprise Server for SAP Applications 12 SP5:libavahi-common3-0.6.32-32.15.1 SUSE Linux Enterprise Server for SAP Applications 12 SP5:libavahi-common3-32bit-0.6.32-32.15.1 SUSE Linux Enterprise Server for SAP Applications 12 SP5:libavahi-core7-0.6.32-32.15.1 SUSE Linux Enterprise Server for SAP Applications 12 SP5:libavahi-glib1-0.6.32-32.15.1 SUSE Linux Enterprise Server for SAP Applications 12 SP5:libavahi-glib1-32bit-0.6.32-32.15.1 SUSE Linux Enterprise Server for SAP Applications 12 SP5:libdns_sd-0.6.32-32.15.1 SUSE Linux Enterprise Server for SAP Applications 12 SP5:libdns_sd-32bit-0.6.32-32.15.1 SUSE Linux Enterprise Software Development Kit 12 SP5:avahi-compat-howl-devel-0.6.32-32.15.1 SUSE Linux Enterprise Software Development Kit 12 SP5:avahi-compat-mDNSResponder-devel-0.6.32-32.15.1 SUSE Linux Enterprise Software Development Kit 12 SP5:libavahi-devel-0.6.32-32.15.1 SUSE Linux Enterprise Software Development Kit 12 SP5:libavahi-glib-devel-0.6.32-32.15.1 SUSE Linux Enterprise Software Development Kit 12 SP5:libavahi-gobject-devel-0.6.32-32.15.1 SUSE Linux Enterprise Software Development Kit 12 SP5:libavahi-gobject0-0.6.32-32.15.1 SUSE Linux Enterprise Software Development Kit 12 SP5:libavahi-ui-gtk3-0-0.6.32-32.15.1 SUSE Linux Enterprise Software Development Kit 12 SP5:libavahi-ui0-0.6.32-32.15.1 SUSE Linux Enterprise Software Development Kit 12 SP5:libhowl0-0.6.32-32.15.1 SUSE Linux Enterprise Software Development Kit 12 SP5:python-avahi-0.6.32-32.15.1 SUSE Linux Enterprise Software Development Kit 12 SP5:typelib-1_0-Avahi-0_6-0.6.32-32.15.1 SUSE Linux Enterprise Workstation Extension 12 SP5:libavahi-gobject0-0.6.32-32.15.1 SUSE Linux Enterprise Workstation Extension 12 SP5:libavahi-ui-gtk3-0-0.6.32-32.15.1 SUSE Linux Enterprise Workstation Extension 12 SP5:libavahi-ui0-0.6.32-32.15.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2021/suse-su-20211494-1/ https://www.suse.com/security/cve/CVE-2021-3468.html CVE-2021-3468 https://bugzilla.suse.com/1184521 SUSE Bug 1184521