Security update for avahi SUSE Patch security@suse.de SUSE Security Team openSUSE-SU-2021:0694-1 Final 1 1 2021-05-09T18:05:39Z current 2021-05-09T18:05:39Z 2021-05-09T18:05:39Z 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). This update was imported from the SUSE:SLE-15-SP1:Update update project. The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). openSUSE-2021-694 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/VCPLDL2TVAMUG4CYPGSPUHQ3KJXENCPN/ E-Mail link for openSUSE-SU-2021:0694-1 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 openSUSE Leap 15.2 avahi-0.7-lp152.3.9.1 avahi-autoipd-0.7-lp152.3.9.1 avahi-compat-howl-devel-0.7-lp152.3.9.1 avahi-compat-mDNSResponder-devel-0.7-lp152.3.9.1 avahi-lang-0.7-lp152.3.9.1 avahi-mono-0.7-lp152.3.9.1 avahi-utils-0.7-lp152.3.9.1 avahi-utils-gtk-0.7-lp152.3.9.1 libavahi-client3-0.7-lp152.3.9.1 libavahi-client3-32bit-0.7-lp152.3.9.1 libavahi-common3-0.7-lp152.3.9.1 libavahi-common3-32bit-0.7-lp152.3.9.1 libavahi-core7-0.7-lp152.3.9.1 libavahi-devel-0.7-lp152.3.9.1 libavahi-glib-devel-0.7-lp152.3.9.1 libavahi-glib1-0.7-lp152.3.9.1 libavahi-glib1-32bit-0.7-lp152.3.9.1 libavahi-gobject-devel-0.7-lp152.3.9.1 libavahi-gobject0-0.7-lp152.3.9.1 libavahi-qt4-1-0.7-lp152.3.9.1 libavahi-qt4-devel-0.7-lp152.3.9.1 libavahi-ui-gtk3-0-0.7-lp152.3.9.1 libavahi-ui0-0.7-lp152.3.9.1 libdns_sd-0.7-lp152.3.9.1 libdns_sd-32bit-0.7-lp152.3.9.1 libhowl0-0.7-lp152.3.9.1 python3-avahi-0.7-lp152.3.9.1 python3-avahi-gtk-0.7-lp152.3.9.1 typelib-1_0-Avahi-0_6-0.7-lp152.3.9.1 avahi-0.7-lp152.3.9.1 as a component of openSUSE Leap 15.2 avahi-autoipd-0.7-lp152.3.9.1 as a component of openSUSE Leap 15.2 avahi-compat-howl-devel-0.7-lp152.3.9.1 as a component of openSUSE Leap 15.2 avahi-compat-mDNSResponder-devel-0.7-lp152.3.9.1 as a component of openSUSE Leap 15.2 avahi-lang-0.7-lp152.3.9.1 as a component of openSUSE Leap 15.2 avahi-mono-0.7-lp152.3.9.1 as a component of openSUSE Leap 15.2 avahi-utils-0.7-lp152.3.9.1 as a component of openSUSE Leap 15.2 avahi-utils-gtk-0.7-lp152.3.9.1 as a component of openSUSE Leap 15.2 libavahi-client3-0.7-lp152.3.9.1 as a component of openSUSE Leap 15.2 libavahi-client3-32bit-0.7-lp152.3.9.1 as a component of openSUSE Leap 15.2 libavahi-common3-0.7-lp152.3.9.1 as a component of openSUSE Leap 15.2 libavahi-common3-32bit-0.7-lp152.3.9.1 as a component of openSUSE Leap 15.2 libavahi-core7-0.7-lp152.3.9.1 as a component of openSUSE Leap 15.2 libavahi-devel-0.7-lp152.3.9.1 as a component of openSUSE Leap 15.2 libavahi-glib-devel-0.7-lp152.3.9.1 as a component of openSUSE Leap 15.2 libavahi-glib1-0.7-lp152.3.9.1 as a component of openSUSE Leap 15.2 libavahi-glib1-32bit-0.7-lp152.3.9.1 as a component of openSUSE Leap 15.2 libavahi-gobject-devel-0.7-lp152.3.9.1 as a component of openSUSE Leap 15.2 libavahi-gobject0-0.7-lp152.3.9.1 as a component of openSUSE Leap 15.2 libavahi-qt4-1-0.7-lp152.3.9.1 as a component of openSUSE Leap 15.2 libavahi-qt4-devel-0.7-lp152.3.9.1 as a component of openSUSE Leap 15.2 libavahi-ui-gtk3-0-0.7-lp152.3.9.1 as a component of openSUSE Leap 15.2 libavahi-ui0-0.7-lp152.3.9.1 as a component of openSUSE Leap 15.2 libdns_sd-0.7-lp152.3.9.1 as a component of openSUSE Leap 15.2 libdns_sd-32bit-0.7-lp152.3.9.1 as a component of openSUSE Leap 15.2 libhowl0-0.7-lp152.3.9.1 as a component of openSUSE Leap 15.2 python3-avahi-0.7-lp152.3.9.1 as a component of openSUSE Leap 15.2 python3-avahi-gtk-0.7-lp152.3.9.1 as a component of openSUSE Leap 15.2 typelib-1_0-Avahi-0_6-0.7-lp152.3.9.1 as a component of openSUSE Leap 15.2 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 openSUSE Leap 15.2:avahi-0.7-lp152.3.9.1 openSUSE Leap 15.2:avahi-autoipd-0.7-lp152.3.9.1 openSUSE Leap 15.2:avahi-compat-howl-devel-0.7-lp152.3.9.1 openSUSE Leap 15.2:avahi-compat-mDNSResponder-devel-0.7-lp152.3.9.1 openSUSE Leap 15.2:avahi-lang-0.7-lp152.3.9.1 openSUSE Leap 15.2:avahi-mono-0.7-lp152.3.9.1 openSUSE Leap 15.2:avahi-utils-0.7-lp152.3.9.1 openSUSE Leap 15.2:avahi-utils-gtk-0.7-lp152.3.9.1 openSUSE Leap 15.2:libavahi-client3-0.7-lp152.3.9.1 openSUSE Leap 15.2:libavahi-client3-32bit-0.7-lp152.3.9.1 openSUSE Leap 15.2:libavahi-common3-0.7-lp152.3.9.1 openSUSE Leap 15.2:libavahi-common3-32bit-0.7-lp152.3.9.1 openSUSE Leap 15.2:libavahi-core7-0.7-lp152.3.9.1 openSUSE Leap 15.2:libavahi-devel-0.7-lp152.3.9.1 openSUSE Leap 15.2:libavahi-glib-devel-0.7-lp152.3.9.1 openSUSE Leap 15.2:libavahi-glib1-0.7-lp152.3.9.1 openSUSE Leap 15.2:libavahi-glib1-32bit-0.7-lp152.3.9.1 openSUSE Leap 15.2:libavahi-gobject-devel-0.7-lp152.3.9.1 openSUSE Leap 15.2:libavahi-gobject0-0.7-lp152.3.9.1 openSUSE Leap 15.2:libavahi-qt4-1-0.7-lp152.3.9.1 openSUSE Leap 15.2:libavahi-qt4-devel-0.7-lp152.3.9.1 openSUSE Leap 15.2:libavahi-ui-gtk3-0-0.7-lp152.3.9.1 openSUSE Leap 15.2:libavahi-ui0-0.7-lp152.3.9.1 openSUSE Leap 15.2:libdns_sd-0.7-lp152.3.9.1 openSUSE Leap 15.2:libdns_sd-32bit-0.7-lp152.3.9.1 openSUSE Leap 15.2:libhowl0-0.7-lp152.3.9.1 openSUSE Leap 15.2:python3-avahi-0.7-lp152.3.9.1 openSUSE Leap 15.2:python3-avahi-gtk-0.7-lp152.3.9.1 openSUSE Leap 15.2:typelib-1_0-Avahi-0_6-0.7-lp152.3.9.1 moderate 2.1 AV:L/AC:L/Au:N/C:N/I:N/A:P To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/VCPLDL2TVAMUG4CYPGSPUHQ3KJXENCPN/ https://www.suse.com/security/cve/CVE-2021-3468.html CVE-2021-3468 https://bugzilla.suse.com/1184521 SUSE Bug 1184521