CVE-2021-3502

A flaw was found in avahi 0.8-5. A reachable assertion is present in avahi_s_host_name_resolver_start function allowing a local attacker to crash the avahi service by requesting hostname resolutions through the avahi socket or dbus methods for invalid hostnames. The highest threat from this vulnerability is to the service availability.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
5.5 MEDIUM
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 9%
Affected Products (NVD)
VendorProductVersion
avahiavahi
0.8-5
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
avahi
bookworm
0.8-10
fixed
bullseye
0.8-5+deb11u2
fixed
buster
not-affected
sid
0.8-13
fixed
stretch
not-affected
trixie
0.8-13
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
avahi
bionic
not-affected
focal
not-affected
groovy
Fixed 0.8-3ubuntu1.1
released
hirsute
Fixed 0.8-5ubuntu3.1
released
impish
Fixed 0.8-5ubuntu4
released
jammy
Fixed 0.8-5ubuntu4
released
trusty
not-affected
xenial
not-affected
openSUSE logo
openSUSE / SLES Releases
openSUSE Product
Release
avahi
suse enterprise desktop 15 SP4
0.8-150400.5.73
fixed
suse enterprise desktop 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise desktop 15 SP6
0.8-150600.13.4
fixed
suse enterprise desktop 15 SP7
0.8-150600.15.6.1
fixed
suse enterprise sap 15 SP4
0.8-150400.5.73
fixed
suse enterprise sap 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise sap 15 SP6
0.8-150600.13.4
fixed
suse enterprise sap 15 SP7
0.8-150600.15.6.1
fixed
suse enterprise server 15 SP4
0.8-150400.5.73
fixed
suse enterprise server 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise server 15 SP6
0.8-150600.13.4
fixed
suse enterprise server 15 SP7
0.8-150600.15.6.1
fixed
avahi-autoipd
suse enterprise desktop 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise desktop 15 SP6
0.8-150600.13.4
fixed
suse enterprise desktop 15 SP7
0.8-150600.15.6.1
fixed
suse enterprise sap 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise sap 15 SP6
0.8-150600.13.4
fixed
suse enterprise sap 15 SP7
0.8-150600.15.6.1
fixed
suse enterprise server 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise server 15 SP6
0.8-150600.13.4
fixed
suse enterprise server 15 SP7
0.8-150600.15.6.1
fixed
avahi-compat-howl-devel
suse enterprise desktop 15 SP4
0.8-150400.5.73
fixed
suse enterprise desktop 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise desktop 15 SP6
0.8-150600.13.4
fixed
suse enterprise desktop 15 SP7
0.8-150600.15.6.1
fixed
suse enterprise sap 15 SP4
0.8-150400.5.73
fixed
suse enterprise sap 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise sap 15 SP6
0.8-150600.13.4
fixed
suse enterprise sap 15 SP7
0.8-150600.15.6.1
fixed
suse enterprise server 15 SP4
0.8-150400.5.73
fixed
suse enterprise server 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise server 15 SP6
0.8-150600.13.4
fixed
suse enterprise server 15 SP7
0.8-150600.15.6.1
fixed
avahi-compat-mDNSResponder-devel
suse enterprise desktop 15 SP4
0.8-150400.5.73
fixed
suse enterprise desktop 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise desktop 15 SP6
0.8-150600.13.4
fixed
suse enterprise desktop 15 SP7
0.8-150600.15.6.1
fixed
suse enterprise sap 15 SP4
0.8-150400.5.73
fixed
suse enterprise sap 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise sap 15 SP6
0.8-150600.13.4
fixed
suse enterprise sap 15 SP7
0.8-150600.15.6.1
fixed
suse enterprise server 15 SP4
0.8-150400.5.73
fixed
suse enterprise server 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise server 15 SP6
0.8-150600.13.4
fixed
suse enterprise server 15 SP7
0.8-150600.15.6.1
fixed
avahi-lang
suse enterprise desktop 15 SP4
0.8-150400.5.73
fixed
suse enterprise desktop 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise desktop 15 SP6
0.8-150600.13.4
fixed
suse enterprise desktop 15 SP7
0.8-150600.15.6.1
fixed
suse enterprise sap 15 SP4
0.8-150400.5.73
fixed
suse enterprise sap 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise sap 15 SP6
0.8-150600.13.4
fixed
suse enterprise sap 15 SP7
0.8-150600.15.6.1
fixed
suse enterprise server 15 SP4
0.8-150400.5.73
fixed
suse enterprise server 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise server 15 SP6
0.8-150600.13.4
fixed
suse enterprise server 15 SP7
0.8-150600.15.6.1
fixed
avahi-utils
suse enterprise desktop 15 SP4
0.8-150400.5.73
fixed
suse enterprise desktop 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise desktop 15 SP6
0.8-150600.13.4
fixed
suse enterprise desktop 15 SP7
0.8-150600.15.6.1
fixed
suse enterprise sap 15 SP4
0.8-150400.5.73
fixed
suse enterprise sap 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise sap 15 SP6
0.8-150600.13.4
fixed
suse enterprise sap 15 SP7
0.8-150600.15.6.1
fixed
suse enterprise server 15 SP4
0.8-150400.5.73
fixed
suse enterprise server 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise server 15 SP6
0.8-150600.13.4
fixed
suse enterprise server 15 SP7
0.8-150600.15.6.1
fixed
avahi-utils-gtk
suse enterprise desktop 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise desktop 15 SP6
0.8-150600.13.4
fixed
suse enterprise desktop 15 SP7
0.8-150600.15.6.1
fixed
suse enterprise sap 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise sap 15 SP6
0.8-150600.13.4
fixed
suse enterprise sap 15 SP7
0.8-150600.15.6.1
fixed
suse enterprise server 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise server 15 SP6
0.8-150600.13.4
fixed
suse enterprise server 15 SP7
0.8-150600.15.6.1
fixed
libavahi-client3
suse enterprise desktop 15 SP4
0.8-150400.5.73
fixed
suse enterprise desktop 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise desktop 15 SP6
0.8-150600.13.4
fixed
suse enterprise desktop 15 SP7
0.8-150600.15.6.1
fixed
suse enterprise sap 15 SP4
0.8-150400.5.73
fixed
suse enterprise sap 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise sap 15 SP6
0.8-150600.13.4
fixed
suse enterprise sap 15 SP7
0.8-150600.15.6.1
fixed
suse enterprise server 15 SP4
0.8-150400.5.73
fixed
suse enterprise server 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise server 15 SP6
0.8-150600.13.4
fixed
suse enterprise server 15 SP7
0.8-150600.15.6.1
fixed
libavahi-client3-32bit
suse enterprise desktop 15 SP4
0.8-150400.5.73
fixed
suse enterprise desktop 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise desktop 15 SP6
0.8-150600.13.4
fixed
suse enterprise desktop 15 SP7
0.8-150600.15.6.1
fixed
suse enterprise sap 15 SP4
0.8-150400.5.73
fixed
suse enterprise sap 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise sap 15 SP6
0.8-150600.13.4
fixed
suse enterprise sap 15 SP7
0.8-150600.15.6.1
fixed
suse enterprise server 15 SP4
0.8-150400.5.73
fixed
suse enterprise server 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise server 15 SP6
0.8-150600.13.4
fixed
suse enterprise server 15 SP7
0.8-150600.15.6.1
fixed
libavahi-common3
suse enterprise desktop 15 SP4
0.8-150400.5.73
fixed
suse enterprise desktop 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise desktop 15 SP6
0.8-150600.13.4
fixed
suse enterprise desktop 15 SP7
0.8-150600.15.6.1
fixed
suse enterprise sap 15 SP4
0.8-150400.5.73
fixed
suse enterprise sap 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise sap 15 SP6
0.8-150600.13.4
fixed
suse enterprise sap 15 SP7
0.8-150600.15.6.1
fixed
suse enterprise server 15 SP4
0.8-150400.5.73
fixed
suse enterprise server 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise server 15 SP6
0.8-150600.13.4
fixed
suse enterprise server 15 SP7
0.8-150600.15.6.1
fixed
libavahi-common3-32bit
suse enterprise desktop 15 SP4
0.8-150400.5.73
fixed
suse enterprise desktop 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise desktop 15 SP6
0.8-150600.13.4
fixed
suse enterprise desktop 15 SP7
0.8-150600.15.6.1
fixed
suse enterprise sap 15 SP4
0.8-150400.5.73
fixed
suse enterprise sap 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise sap 15 SP6
0.8-150600.13.4
fixed
suse enterprise sap 15 SP7
0.8-150600.15.6.1
fixed
suse enterprise server 15 SP4
0.8-150400.5.73
fixed
suse enterprise server 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise server 15 SP6
0.8-150600.13.4
fixed
suse enterprise server 15 SP7
0.8-150600.15.6.1
fixed
libavahi-core7
suse enterprise desktop 15 SP4
0.8-150400.5.73
fixed
suse enterprise desktop 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise desktop 15 SP6
0.8-150600.13.4
fixed
suse enterprise desktop 15 SP7
0.8-150600.15.6.1
fixed
suse enterprise sap 15 SP4
0.8-150400.5.73
fixed
suse enterprise sap 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise sap 15 SP6
0.8-150600.13.4
fixed
suse enterprise sap 15 SP7
0.8-150600.15.6.1
fixed
suse enterprise server 15 SP4
0.8-150400.5.73
fixed
suse enterprise server 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise server 15 SP6
0.8-150600.13.4
fixed
suse enterprise server 15 SP7
0.8-150600.15.6.1
fixed
libavahi-devel
suse enterprise desktop 15 SP4
0.8-150400.5.73
fixed
suse enterprise desktop 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise desktop 15 SP6
0.8-150600.13.4
fixed
suse enterprise desktop 15 SP7
0.8-150600.15.6.1
fixed
suse enterprise sap 15 SP4
0.8-150400.5.73
fixed
suse enterprise sap 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise sap 15 SP6
0.8-150600.13.4
fixed
suse enterprise sap 15 SP7
0.8-150600.15.6.1
fixed
suse enterprise server 15 SP4
0.8-150400.5.73
fixed
suse enterprise server 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise server 15 SP6
0.8-150600.13.4
fixed
suse enterprise server 15 SP7
0.8-150600.15.6.1
fixed
libavahi-glib-devel
suse enterprise desktop 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise desktop 15 SP6
0.8-150600.13.4
fixed
suse enterprise desktop 15 SP7
0.8-150600.15.6.1
fixed
suse enterprise sap 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise sap 15 SP6
0.8-150600.13.4
fixed
suse enterprise sap 15 SP7
0.8-150600.15.6.1
fixed
suse enterprise server 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise server 15 SP6
0.8-150600.13.4
fixed
suse enterprise server 15 SP7
0.8-150600.15.6.1
fixed
libavahi-glib1
suse enterprise desktop 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise desktop 15 SP6
0.8-150600.13.4
fixed
suse enterprise desktop 15 SP7
0.8-150600.15.6.1
fixed
suse enterprise sap 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise sap 15 SP6
0.8-150600.13.4
fixed
suse enterprise sap 15 SP7
0.8-150600.15.6.1
fixed
suse enterprise server 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise server 15 SP6
0.8-150600.13.4
fixed
suse enterprise server 15 SP7
0.8-150600.15.6.1
fixed
libavahi-gobject-devel
suse enterprise desktop 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise desktop 15 SP6
0.8-150600.13.4
fixed
suse enterprise desktop 15 SP7
0.8-150600.15.6.1
fixed
suse enterprise sap 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise sap 15 SP6
0.8-150600.13.4
fixed
suse enterprise sap 15 SP7
0.8-150600.15.6.1
fixed
suse enterprise server 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise server 15 SP6
0.8-150600.13.4
fixed
suse enterprise server 15 SP7
0.8-150600.15.6.1
fixed
libavahi-gobject0
suse enterprise desktop 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise desktop 15 SP6
0.8-150600.13.4
fixed
suse enterprise desktop 15 SP7
0.8-150600.15.6.1
fixed
suse enterprise sap 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise sap 15 SP6
0.8-150600.13.4
fixed
suse enterprise sap 15 SP7
0.8-150600.15.6.1
fixed
suse enterprise server 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise server 15 SP6
0.8-150600.13.4
fixed
suse enterprise server 15 SP7
0.8-150600.15.6.1
fixed
libavahi-libevent1
suse enterprise desktop 15 SP4
0.8-150400.5.73
fixed
suse enterprise desktop 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise desktop 15 SP6
0.8-150600.13.4
fixed
suse enterprise desktop 15 SP7
0.8-150600.15.6.1
fixed
suse enterprise sap 15 SP4
0.8-150400.5.73
fixed
suse enterprise sap 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise sap 15 SP6
0.8-150600.13.4
fixed
suse enterprise sap 15 SP7
0.8-150600.15.6.1
fixed
suse enterprise server 15 SP4
0.8-150400.5.73
fixed
suse enterprise server 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise server 15 SP6
0.8-150600.13.4
fixed
suse enterprise server 15 SP7
0.8-150600.15.6.1
fixed
libavahi-ui-gtk3-0
suse enterprise desktop 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise desktop 15 SP6
0.8-150600.13.4
fixed
suse enterprise desktop 15 SP7
0.8-150600.15.6.1
fixed
suse enterprise sap 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise sap 15 SP6
0.8-150600.13.4
fixed
suse enterprise sap 15 SP7
0.8-150600.15.6.1
fixed
suse enterprise server 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise server 15 SP6
0.8-150600.13.4
fixed
suse enterprise server 15 SP7
0.8-150600.15.6.1
fixed
libdns_sd
suse enterprise desktop 15 SP4
0.8-150400.5.73
fixed
suse enterprise desktop 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise desktop 15 SP6
0.8-150600.13.4
fixed
suse enterprise desktop 15 SP7
0.8-150600.15.6.1
fixed
suse enterprise sap 15 SP4
0.8-150400.5.73
fixed
suse enterprise sap 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise sap 15 SP6
0.8-150600.13.4
fixed
suse enterprise sap 15 SP7
0.8-150600.15.6.1
fixed
suse enterprise server 15 SP4
0.8-150400.5.73
fixed
suse enterprise server 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise server 15 SP6
0.8-150600.13.4
fixed
suse enterprise server 15 SP7
0.8-150600.15.6.1
fixed
libhowl0
suse enterprise desktop 15 SP4
0.8-150400.5.73
fixed
suse enterprise desktop 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise desktop 15 SP6
0.8-150600.13.4
fixed
suse enterprise desktop 15 SP7
0.8-150600.15.6.1
fixed
suse enterprise sap 15 SP4
0.8-150400.5.73
fixed
suse enterprise sap 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise sap 15 SP6
0.8-150600.13.4
fixed
suse enterprise sap 15 SP7
0.8-150600.15.6.1
fixed
suse enterprise server 15 SP4
0.8-150400.5.73
fixed
suse enterprise server 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise server 15 SP6
0.8-150600.13.4
fixed
suse enterprise server 15 SP7
0.8-150600.15.6.1
fixed
typelib-1_0-Avahi-0_6
suse enterprise desktop 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise desktop 15 SP6
0.8-150600.13.4
fixed
suse enterprise desktop 15 SP7
0.8-150600.15.6.1
fixed
suse enterprise sap 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise sap 15 SP6
0.8-150600.13.4
fixed
suse enterprise sap 15 SP7
0.8-150600.15.6.1
fixed
suse enterprise server 15 SP5
0.8-150400.7.3.1
fixed
suse enterprise server 15 SP6
0.8-150600.13.4
fixed
suse enterprise server 15 SP7
0.8-150600.15.6.1
fixed
Red Hat logo
Red Hat Enterprise Linux Releases
Red Hat Product
Release
avahi
RHEL 9
0:0.8-15.el9
fixed
avahi-compat-howl
RHEL 9
0:0.8-15.el9
fixed
avahi-compat-howl-devel
RHEL 9
0:0.8-15.el9
fixed
avahi-compat-libdns
RHEL 9
0:0.8-15.el9
fixed
avahi-devel
RHEL 9
0:0.8-15.el9
fixed
avahi-glib
RHEL 9
0:0.8-15.el9
fixed
avahi-glib-devel
RHEL 9
0:0.8-15.el9
fixed
avahi-libs
RHEL 9
0:0.8-15.el9
fixed
avahi-tools
RHEL 9
0:0.8-15.el9
fixed
Common Weakness Enumeration
References
https://bugzilla.redhat.com/show_bug.cgi?id=1946914
https://github.com/lathiat/avahi/issues/338
https://bugzilla.redhat.com/show_bug.cgi?id=1946914
https://github.com/lathiat/avahi/issues/338