{"id":"SUSE-SU-2021:0551-1","summary":"Security update for avahi","details":"This update for avahi fixes the following issues:\n\n- CVE-2021-26720: drop privileges when invoking avahi-daemon-check-dns.sh (bsc#1180827)\n- Update avahi-daemon-check-dns.sh from Debian. Our previous version relied on ifconfig, route, and init.d.\n- Add sudo to requires: used to drop privileges.\n","modified":"2026-02-04T04:40:18.551118Z","published":"2021-02-23T08:32:07Z","related":["CVE-2021-26720"],"upstream":["CVE-2021-26720"],"references":[{"type":"ADVISORY","url":"https://www.suse.com/support/update/announcement/2021/suse-su-20210551-1/"},{"type":"REPORT","url":"https://bugzilla.suse.com/1180827"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2021-26720"}],"affected":[{"package":{"name":"avahi","ecosystem":"SUSE:Linux Enterprise Module for Basesystem 15 SP2","purl":"pkg:rpm/suse/avahi&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP2"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.7-3.6.1"}]}],"ecosystem_specific":{"binaries":[{"avahi-lang":"0.7-3.6.1","avahi":"0.7-3.6.1","libavahi-common3-32bit":"0.7-3.6.1","libavahi-glib1":"0.7-3.6.1","libavahi-ui-gtk3-0":"0.7-3.6.1","libhowl0":"0.7-3.6.1","libavahi-client3":"0.7-3.6.1","libavahi-core7":"0.7-3.6.1","libavahi-devel":"0.7-3.6.1","libavahi-glib-devel":"0.7-3.6.1","libdns_sd":"0.7-3.6.1","avahi-compat-mDNSResponder-devel":"0.7-3.6.1","avahi-utils":"0.7-3.6.1","libavahi-gobject0":"0.7-3.6.1","libavahi-ui0":"0.7-3.6.1","typelib-1_0-Avahi-0_6":"0.7-3.6.1","libavahi-client3-32bit":"0.7-3.6.1","libavahi-common3":"0.7-3.6.1","avahi-compat-howl-devel":"0.7-3.6.1"}]},"database_specific":{"source":"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2021:0551-1.json"}},{"package":{"name":"avahi-glib2","ecosystem":"SUSE:Linux Enterprise Module for Basesystem 15 SP2","purl":"pkg:rpm/suse/avahi-glib2&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP2"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.7-3.6.1"}]}],"ecosystem_specific":{"binaries":[{"libavahi-common3-32bit":"0.7-3.6.1","libavahi-core7":"0.7-3.6.1","libavahi-gobject0":"0.7-3.6.1","avahi-utils":"0.7-3.6.1","libavahi-ui0":"0.7-3.6.1","avahi-compat-mDNSResponder-devel":"0.7-3.6.1","avahi":"0.7-3.6.1","libavahi-client3":"0.7-3.6.1","libavahi-devel":"0.7-3.6.1","libdns_sd":"0.7-3.6.1","avahi-compat-howl-devel":"0.7-3.6.1","libavahi-client3-32bit":"0.7-3.6.1","libavahi-common3":"0.7-3.6.1","libavahi-glib-devel":"0.7-3.6.1","libavahi-glib1":"0.7-3.6.1","libavahi-ui-gtk3-0":"0.7-3.6.1","libhowl0":"0.7-3.6.1","typelib-1_0-Avahi-0_6":"0.7-3.6.1","avahi-lang":"0.7-3.6.1"}]},"database_specific":{"source":"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2021:0551-1.json"}},{"package":{"name":"avahi","ecosystem":"SUSE:Linux Enterprise Module for Desktop Applications 15 SP2","purl":"pkg:rpm/suse/avahi&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Desktop%20Applications%2015%20SP2"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.7-3.6.1"}]}],"ecosystem_specific":{"binaries":[{"avahi-utils-gtk":"0.7-3.6.1","libavahi-gobject-devel":"0.7-3.6.1","avahi-autoipd":"0.7-3.6.1"}]},"database_specific":{"source":"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2021:0551-1.json"}},{"package":{"name":"avahi-glib2","ecosystem":"SUSE:Linux Enterprise Module for Desktop Applications 15 SP2","purl":"pkg:rpm/suse/avahi-glib2&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Desktop%20Applications%2015%20SP2"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.7-3.6.1"}]}],"ecosystem_specific":{"binaries":[{"avahi-autoipd":"0.7-3.6.1","avahi-utils-gtk":"0.7-3.6.1","libavahi-gobject-devel":"0.7-3.6.1"}]},"database_specific":{"source":"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2021:0551-1.json"}},{"package":{"name":"avahi","ecosystem":"SUSE:Linux Enterprise Module for Package Hub 15 SP2","purl":"pkg:rpm/suse/avahi&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Package%20Hub%2015%20SP2"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.7-3.6.1"}]}],"ecosystem_specific":{"binaries":[{"python3-avahi":"0.7-3.6.1"}]},"database_specific":{"source":"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2021:0551-1.json"}}],"schema_version":"1.7.3"}