Upstream information

CVE-2021-3502 at MITRE

Description

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.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having moderate severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 2.1
Vector AV:L/AC:L/Au:N/C:N/I:N/A:P
Access Vector Local
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
CVSS v3 Scores
  National Vulnerability Database SUSE
Base Score 5.5 5.5
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local Local
Attack Complexity Low Low
Privileges Required Low Low
User Interaction None None
Scope Unchanged Unchanged
Confidentiality Impact None None
Integrity Impact None None
Availability Impact High High
CVSSv3 Version 3.1 3.1
SUSE Bugzilla entry: 1184846 [RESOLVED / FIXED]

No SUSE Security Announcements cross referenced.

List of released packages

Product(s) Fixed package version(s) References
SUSE Liberty Linux 9
  • avahi >= 0.8-15.el9
  • avahi-compat-howl >= 0.8-15.el9
  • avahi-compat-howl-devel >= 0.8-15.el9
  • avahi-compat-libdns_sd >= 0.8-15.el9
  • avahi-compat-libdns_sd-devel >= 0.8-15.el9
  • avahi-devel >= 0.8-15.el9
  • avahi-glib >= 0.8-15.el9
  • avahi-glib-devel >= 0.8-15.el9
  • avahi-libs >= 0.8-15.el9
  • avahi-tools >= 0.8-15.el9
Patchnames:
RHSA-2023:6707
SUSE Linux Enterprise Desktop 15 SP4
SUSE Linux Enterprise High Performance Computing 15 SP4
SUSE Linux Enterprise Server 15 SP4
SUSE Linux Enterprise Server for SAP Applications 15 SP4
SUSE Manager Proxy 4.3
SUSE Manager Retail Branch Server 4.3
SUSE Manager Server 4.3
  • avahi >= 0.8-150400.5.73
  • avahi-autoipd >= 0.8-150400.5.73
  • avahi-compat-howl-devel >= 0.8-150400.5.73
  • avahi-compat-mDNSResponder-devel >= 0.8-150400.5.73
  • avahi-lang >= 0.8-150400.5.73
  • avahi-utils >= 0.8-150400.5.73
  • libavahi-client3 >= 0.8-150400.5.73
  • libavahi-client3-32bit >= 0.8-150400.5.73
  • libavahi-common3 >= 0.8-150400.5.73
  • libavahi-common3-32bit >= 0.8-150400.5.73
  • libavahi-core7 >= 0.8-150400.5.73
  • libavahi-devel >= 0.8-150400.5.73
  • libavahi-libevent1 >= 0.8-150400.5.73
  • libdns_sd >= 0.8-150400.5.73
  • libhowl0 >= 0.8-150400.5.73
Patchnames:
SUSE Linux Enterprise Module for Basesystem 15 SP4 GA avahi-0.8-150400.5.73
SUSE Linux Enterprise Module for Desktop Applications 15 SP4 GA avahi-autoipd-0.8-150400.5.73
SUSE Linux Enterprise Desktop 15 SP5
SUSE Linux Enterprise High Performance Computing 15 SP5
SUSE Linux Enterprise Server 15 SP5
SUSE Linux Enterprise Server for SAP Applications 15 SP5
  • avahi >= 0.8-150400.7.3.1
  • avahi-autoipd >= 0.8-150400.7.3.1
  • avahi-compat-howl-devel >= 0.8-150400.7.3.1
  • avahi-compat-mDNSResponder-devel >= 0.8-150400.7.3.1
  • avahi-lang >= 0.8-150400.7.3.1
  • avahi-utils >= 0.8-150400.7.3.1
  • avahi-utils-gtk >= 0.8-150400.7.3.1
  • libavahi-client3 >= 0.8-150400.7.3.1
  • libavahi-client3-32bit >= 0.8-150400.7.3.1
  • libavahi-common3 >= 0.8-150400.7.3.1
  • libavahi-common3-32bit >= 0.8-150400.7.3.1
  • libavahi-core7 >= 0.8-150400.7.3.1
  • libavahi-devel >= 0.8-150400.7.3.1
  • libavahi-glib-devel >= 0.8-150400.7.3.1
  • libavahi-glib1 >= 0.8-150400.7.3.1
  • libavahi-gobject-devel >= 0.8-150400.7.3.1
  • libavahi-gobject0 >= 0.8-150400.7.3.1
  • libavahi-libevent1 >= 0.8-150400.7.3.1
  • libavahi-ui-gtk3-0 >= 0.8-150400.7.3.1
  • libdns_sd >= 0.8-150400.7.3.1
  • libhowl0 >= 0.8-150400.7.3.1
  • typelib-1_0-Avahi-0_6 >= 0.8-150400.7.3.1
Patchnames:
SUSE Linux Enterprise Module for Basesystem 15 SP5 GA avahi-0.8-150400.7.3.1
SUSE Linux Enterprise Module for Desktop Applications 15 SP5 GA avahi-autoipd-0.8-150400.7.3.1
SUSE Linux Enterprise Micro 5.3
  • avahi >= 0.8-150400.5.73
  • libavahi-client3 >= 0.8-150400.5.73
  • libavahi-common3 >= 0.8-150400.5.73
  • libavahi-core7 >= 0.8-150400.5.73
Patchnames:
SUSE Linux Enterprise Micro 5.3 GA avahi-0.8-150400.5.73
SUSE Linux Enterprise Micro 5.4
  • avahi >= 0.8-150400.5.73
  • libavahi-client3 >= 0.8-150400.5.73
  • libavahi-common3 >= 0.8-150400.5.73
  • libavahi-core7 >= 0.8-150400.5.73
Patchnames:
SUSE Linux Enterprise Micro 5.4 GA avahi-0.8-150400.5.73
SUSE Linux Enterprise Module for Basesystem 15 SP4
  • avahi >= 0.8-150400.5.73
  • avahi-compat-howl-devel >= 0.8-150400.5.73
  • avahi-compat-mDNSResponder-devel >= 0.8-150400.5.73
  • avahi-lang >= 0.8-150400.5.73
  • avahi-utils >= 0.8-150400.5.73
  • libavahi-client3 >= 0.8-150400.5.73
  • libavahi-client3-32bit >= 0.8-150400.5.73
  • libavahi-common3 >= 0.8-150400.5.73
  • libavahi-common3-32bit >= 0.8-150400.5.73
  • libavahi-core7 >= 0.8-150400.5.73
  • libavahi-devel >= 0.8-150400.5.73
  • libavahi-libevent1 >= 0.8-150400.5.73
  • libdns_sd >= 0.8-150400.5.73
  • libhowl0 >= 0.8-150400.5.73
Patchnames:
SUSE Linux Enterprise Module for Basesystem 15 SP4 GA avahi-0.8-150400.5.73
SUSE Linux Enterprise Module for Basesystem 15 SP5
  • avahi >= 0.8-150400.7.3.1
  • avahi-compat-howl-devel >= 0.8-150400.7.3.1
  • avahi-compat-mDNSResponder-devel >= 0.8-150400.7.3.1
  • avahi-lang >= 0.8-150400.7.3.1
  • avahi-utils >= 0.8-150400.7.3.1
  • libavahi-client3 >= 0.8-150400.7.3.1
  • libavahi-client3-32bit >= 0.8-150400.7.3.1
  • libavahi-common3 >= 0.8-150400.7.3.1
  • libavahi-common3-32bit >= 0.8-150400.7.3.1
  • libavahi-core7 >= 0.8-150400.7.3.1
  • libavahi-devel >= 0.8-150400.7.3.1
  • libavahi-glib-devel >= 0.8-150400.7.3.1
  • libavahi-glib1 >= 0.8-150400.7.3.1
  • libavahi-gobject0 >= 0.8-150400.7.3.1
  • libavahi-libevent1 >= 0.8-150400.7.3.1
  • libavahi-ui-gtk3-0 >= 0.8-150400.7.3.1
  • libdns_sd >= 0.8-150400.7.3.1
  • libhowl0 >= 0.8-150400.7.3.1
  • typelib-1_0-Avahi-0_6 >= 0.8-150400.7.3.1
Patchnames:
SUSE Linux Enterprise Module for Basesystem 15 SP5 GA avahi-0.8-150400.7.3.1
SUSE Linux Enterprise Module for Desktop Applications 15 SP4
  • avahi-autoipd >= 0.8-150400.5.73
Patchnames:
SUSE Linux Enterprise Module for Desktop Applications 15 SP4 GA avahi-autoipd-0.8-150400.5.73
SUSE Linux Enterprise Module for Desktop Applications 15 SP5
  • avahi-autoipd >= 0.8-150400.7.3.1
  • avahi-utils-gtk >= 0.8-150400.7.3.1
  • libavahi-gobject-devel >= 0.8-150400.7.3.1
Patchnames:
SUSE Linux Enterprise Module for Desktop Applications 15 SP5 GA avahi-autoipd-0.8-150400.7.3.1
openSUSE Leap 15.4
  • avahi >= 0.8-150400.5.73
  • avahi-lang >= 0.8-150400.5.73
  • libavahi-client3 >= 0.8-150400.5.73
  • libavahi-client3-32bit >= 0.8-150400.5.73
  • libavahi-common3 >= 0.8-150400.5.73
  • libavahi-common3-32bit >= 0.8-150400.5.73
  • libavahi-core7 >= 0.8-150400.5.73
Patchnames:
openSUSE Leap 15.4 GA avahi-0.8-150400.5.73
openSUSE Tumbleweed
  • avahi >= 0.8-7.2
  • avahi-autoipd >= 0.8-7.2
  • avahi-compat-howl-devel >= 0.8-7.2
  • avahi-compat-mDNSResponder-devel >= 0.8-7.2
  • avahi-lang >= 0.8-7.2
  • avahi-utils >= 0.8-7.2
  • libavahi-client3 >= 0.8-7.2
  • libavahi-client3-32bit >= 0.8-7.2
  • libavahi-common3 >= 0.8-7.2
  • libavahi-common3-32bit >= 0.8-7.2
  • libavahi-core7 >= 0.8-7.2
  • libavahi-devel >= 0.8-7.2
  • libavahi-libevent1 >= 0.8-7.2
  • libdns_sd >= 0.8-7.2
  • libdns_sd-32bit >= 0.8-7.2
  • libhowl0 >= 0.8-7.2
  • python36-avahi >= 0.8-7.2
  • python38-avahi >= 0.8-7.2
  • python39-avahi >= 0.8-7.2
Patchnames:
openSUSE Tumbleweed GA avahi-0.8-7.2


Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.

Product(s) Source package State
Products under general support and receiving all security fixes.
SUSE Enterprise Storage 7.1 avahi Not affected
SUSE Linux Enterprise Desktop 15 SP5 avahi Already fixed
SUSE Linux Enterprise High Performance Computing 12 SP5 avahi Not affected
SUSE Linux Enterprise High Performance Computing 15 SP5 avahi Already fixed
SUSE Linux Enterprise Micro 5.2 avahi Not affected
SUSE Linux Enterprise Micro 5.3 avahi Already fixed
SUSE Linux Enterprise Micro 5.4 avahi Already fixed
SUSE Linux Enterprise Micro 5.5 avahi Already fixed
SUSE Linux Enterprise Module for Basesystem 15 SP5 avahi Already fixed
SUSE Linux Enterprise Module for Desktop Applications 15 SP5 avahi Already fixed
SUSE Linux Enterprise Module for Package Hub 15 SP4 avahi Already fixed
SUSE Linux Enterprise Module for Package Hub 15 SP5 avahi Already fixed
SUSE Linux Enterprise Real Time 15 SP3 avahi Not affected
SUSE Linux Enterprise Server 12 SP5 avahi Not affected
SUSE Linux Enterprise Server 15 SP5 avahi Already fixed
SUSE Linux Enterprise Server for SAP Applications 12 SP5 avahi Not affected
SUSE Linux Enterprise Server for SAP Applications 15 SP4 avahi Already fixed
SUSE Linux Enterprise Server for SAP Applications 15 SP5 avahi Already fixed
SUSE Linux Enterprise Software Development Kit 12 SP5 avahi Not affected
SUSE Manager Proxy 4.3 avahi Already fixed
SUSE Manager Retail Branch Server 4.3 avahi Already fixed
SUSE Manager Server 4.3 avahi Already fixed
Products under Long Term Service Pack support and receiving important and critical security fixes.
SUSE Linux Enterprise Desktop 15 SP4 avahi Already fixed
SUSE Linux Enterprise High Performance Computing 15 avahi Not affected
SUSE Linux Enterprise High Performance Computing 15 SP1 avahi Not affected
SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS avahi Not affected
SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS avahi Not affected
SUSE Linux Enterprise High Performance Computing 15 SP2 avahi Not affected
SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS avahi Not affected
SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS avahi Not affected
SUSE Linux Enterprise High Performance Computing 15 SP3 avahi Not affected
SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS avahi Not affected
SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS avahi Not affected
SUSE Linux Enterprise High Performance Computing 15 SP4 avahi Already fixed
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS avahi Already fixed
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS avahi Already fixed
SUSE Linux Enterprise High Performance Computing 15-ESPOS avahi Not affected
SUSE Linux Enterprise High Performance Computing 15-LTSS avahi Not affected
SUSE Linux Enterprise Module for Basesystem 15 SP2 avahi Not affected
SUSE Linux Enterprise Module for Basesystem 15 SP3 avahi Not affected
SUSE Linux Enterprise Module for Basesystem 15 SP4 avahi Already fixed
SUSE Linux Enterprise Module for Desktop Applications 15 SP2 avahi Not affected
SUSE Linux Enterprise Module for Desktop Applications 15 SP3 avahi Not affected
SUSE Linux Enterprise Module for Desktop Applications 15 SP4 avahi Already fixed
SUSE Linux Enterprise Server 12 SP2-BCL avahi Not affected
SUSE Linux Enterprise Server 15 SP2 avahi Not affected
SUSE Linux Enterprise Server 15 SP2-LTSS avahi Not affected
SUSE Linux Enterprise Server 15 SP3 avahi Not affected
SUSE Linux Enterprise Server 15 SP3-LTSS avahi Not affected
SUSE Linux Enterprise Server 15 SP4 avahi Already fixed
SUSE Linux Enterprise Server 15 SP4-LTSS avahi Already fixed
SUSE Linux Enterprise Server 15-ESPOS avahi Not affected
SUSE Linux Enterprise Server Business Critical Linux 15 SP1 avahi Not affected
SUSE Linux Enterprise Server for SAP Applications 15 avahi Not affected
SUSE Linux Enterprise Server for SAP Applications 15 SP1 avahi Not affected
SUSE Linux Enterprise Server for SAP Applications 15 SP2 avahi Not affected
SUSE Linux Enterprise Server for SAP Applications 15 SP3 avahi Not affected
Products past their end of life and not receiving proactive updates anymore.
HPE Helion OpenStack 8 avahi Not affected
SUSE CaaS Platform 4.0 avahi Not affected
SUSE Enterprise Storage 6 avahi Not affected
SUSE Enterprise Storage 7 avahi Not affected
SUSE Linux Enterprise Desktop 11 SP4 avahi Not affected
SUSE Linux Enterprise Desktop 12 SP2 avahi Not affected
SUSE Linux Enterprise Desktop 12 SP3 avahi Not affected
SUSE Linux Enterprise Desktop 12 SP4 avahi Not affected
SUSE Linux Enterprise Desktop 15 avahi Not affected
SUSE Linux Enterprise Desktop 15 SP1 avahi Not affected
SUSE Linux Enterprise Desktop 15 SP2 avahi Not affected
SUSE Linux Enterprise Desktop 15 SP3 avahi Not affected
SUSE Linux Enterprise Module for Basesystem 15 avahi Not affected
SUSE Linux Enterprise Module for Basesystem 15 SP1 avahi Not affected
SUSE Linux Enterprise Module for Desktop Applications 15 avahi Not affected
SUSE Linux Enterprise Module for Desktop Applications 15 SP1 avahi Not affected
SUSE Linux Enterprise Module for Package Hub 15 avahi Not affected
SUSE Linux Enterprise Module for Package Hub 15 SP1 avahi Not affected
SUSE Linux Enterprise Module for Package Hub 15 SP2 avahi Not affected
SUSE Linux Enterprise Module for Package Hub 15 SP3 avahi Not affected
SUSE Linux Enterprise Point of Service 11 SP3 avahi Not affected
SUSE Linux Enterprise Real Time 15 SP2 avahi Not affected
SUSE Linux Enterprise Real Time 15 SP4 avahi Already fixed
SUSE Linux Enterprise Server 11 SP3 avahi Not affected
SUSE Linux Enterprise Server 11 SP3-LTSS avahi Not affected
SUSE Linux Enterprise Server 11 SP4 avahi Not affected
SUSE Linux Enterprise Server 11 SP4 LTSS avahi Not affected
SUSE Linux Enterprise Server 11 SP4-LTSS avahi Not affected
SUSE Linux Enterprise Server 12 SP2 avahi Not affected
SUSE Linux Enterprise Server 12 SP2-ESPOS avahi Not affected
SUSE Linux Enterprise Server 12 SP2-LTSS avahi Not affected
SUSE Linux Enterprise Server 12 SP3 avahi Not affected
SUSE Linux Enterprise Server 12 SP3-BCL avahi Not affected
SUSE Linux Enterprise Server 12 SP3-ESPOS avahi Not affected
SUSE Linux Enterprise Server 12 SP3-LTSS avahi Not affected
SUSE Linux Enterprise Server 12 SP4 avahi Not affected
SUSE Linux Enterprise Server 12 SP4-ESPOS avahi Not affected
SUSE Linux Enterprise Server 12 SP4-LTSS avahi Not affected
SUSE Linux Enterprise Server 15 avahi Not affected
SUSE Linux Enterprise Server 15 SP1 avahi Not affected
SUSE Linux Enterprise Server 15 SP1-BCL avahi Not affected
SUSE Linux Enterprise Server 15 SP1-LTSS avahi Not affected
SUSE Linux Enterprise Server 15 SP2-BCL avahi Not affected
SUSE Linux Enterprise Server 15 SP3-BCL avahi Not affected
SUSE Linux Enterprise Server 15-LTSS avahi Not affected
SUSE Linux Enterprise Server for Raspberry Pi 12 SP2 avahi Not affected
SUSE Linux Enterprise Server for SAP Applications 11 SP4 avahi Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP2 avahi Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP3 avahi Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP4 avahi Not affected
SUSE Linux Enterprise Software Development Kit 11 SP4 avahi Not affected
SUSE Linux Enterprise Software Development Kit 12 SP2 avahi Not affected
SUSE Linux Enterprise Software Development Kit 12 SP3 avahi Not affected
SUSE Linux Enterprise Software Development Kit 12 SP4 avahi Not affected
SUSE Manager Proxy 4.0 avahi Not affected
SUSE Manager Proxy 4.1 avahi Not affected
SUSE Manager Proxy 4.2 avahi Not affected
SUSE Manager Retail Branch Server 4.0 avahi Not affected
SUSE Manager Retail Branch Server 4.1 avahi Not affected
SUSE Manager Retail Branch Server 4.2 avahi Not affected
SUSE Manager Server 4.0 avahi Not affected
SUSE Manager Server 4.1 avahi Not affected
SUSE Manager Server 4.2 avahi Not affected
SUSE OpenStack Cloud 7 avahi Not affected
SUSE OpenStack Cloud 8 avahi Not affected
SUSE OpenStack Cloud 9 avahi Not affected
SUSE OpenStack Cloud Crowbar 8 avahi Not affected
SUSE OpenStack Cloud Crowbar 9 avahi Not affected
Container Status
suse/sle-micro-rancher/5.3
suse/sle-micro-rancher/5.4
suse/sle-micro/5.5
avahiAlready fixed
suse/sle-micro-rancher/5.2 avahiNot affected


SUSE Timeline for this CVE

CVE page created: Thu Apr 15 23:41:37 2021
CVE page last modified: Thu Feb 22 17:15:50 2024