CVE-2021-3468
avahi: Avahi is an implementation of the DNS Service Discovery and Multicast DNS specifications for Zero Configuration Netwo...
CVE-2021-3468 is fixed in 32 products on 1 platform, first by avahi-autoipd 0.7-3.1ubuntu1.3, released June 2, 2021. It is not reported as exploited. Patch Radar priority: Routine.
Routine
CVSS
6.2
Moderate
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0044
38th percentile
Avahi is an implementation of the DNS Service Discovery and Multicast DNS specifications for Zero Configuration Networking. It facilitates service discovery on a local network. Avahi and Avahi-aware applications allow you to plug your computer into a network and, with no configuration, view other people to chat with, view printers to print with, and find shared files on other computers. Security Fix(es): * avahi: Local DoS by event-busy-loop from writing long lines to /run/avahi-daemon/socket (CVE-2021-3468) * avahi: Reachable assertion in avahi_dns_packet_append_record (CVE-2023-38469) * avahi: Reachable assertion in avahi_escape_label (CVE-2023-38470) * avahi: Reachable assertion in dbus_set_host_name (CVE-2023-38471) * avahi: Reachable assertion in avahi_rdata_parse (CVE-2023-38472) * avahi: Reachable assertion in avahi_alternative_host_name (CVE-2023-38473) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| avahi · RHEL 8 | 0:0.7-21.el8_9.1 | RHSA-2023:7836 | Dec 14, 2023 |
| avahi · RHEL 9 | 0:0.8-15.el9 | RHSA-2023:6707 | Nov 7, 2023 |
| avahi · almalinux 8 | 0.7-21.el8_9.1 | ALSA-2023:7836 | Dec 14, 2023 |
| avahi · almalinux 9 | 0.8-15.el9 | ALSA-2023:6707 | Nov 7, 2023 |
| avahi · ol 8 | 0:0.7-21.el8_9.1 | ELSA-2023-7836 | Dec 15, 2023 |
| avahi · ol 9 | 0:0.8-15.el9 | ELSA-2023-6707 | Nov 11, 2023 |
| avahi · rocky 8 | 0:0.7-21.el8_9.1 | RLSA-2023:7836 | Jan 9, 2024 |
| avahi-autoipd · RHEL 8 | 0:0.7-21.el8_9.1 | RHSA-2023:7836 | Dec 14, 2023 |
| avahi-autoipd · Ubuntu 18.04.6 LTS (bionic) | 0.7-3.1ubuntu1.3 | avahi-autoipd 0.7-3.1ubuntu1.3 | Jun 2, 2021 |
| avahi-autoipd · Ubuntu 20.04 LTS (focal) | 0.7-4ubuntu7.1 | avahi-autoipd 0.7-4ubuntu7.1 | Jun 2, 2021 |
| avahi-autoipd · almalinux 8 | 0.7-21.el8_9.1 | ALSA-2023:7836 | Dec 14, 2023 |
| avahi-autoipd · ol 8 | 0:0.7-21.el8_9.1 | ELSA-2023-7836 | Dec 15, 2023 |
| avahi-compat-howl · RHEL 8 | 0:0.7-21.el8_9.1 | RHSA-2023:7836 | Dec 14, 2023 |
| avahi-compat-howl · RHEL 9 | 0:0.8-15.el9 | RHSA-2023:6707 | Nov 7, 2023 |
| avahi-compat-howl · almalinux 8 | 0.7-21.el8_9.1 | ALSA-2023:7836 | Dec 14, 2023 |
| avahi-compat-howl · almalinux 9 | 0.8-15.el9 | ALSA-2023:6707 | Nov 7, 2023 |
| avahi-compat-howl · ol 8 | 0:0.7-21.el8_9.1 | ELSA-2023-7836 | Dec 15, 2023 |
| avahi-compat-howl · ol 9 | 0:0.8-15.el9 | ELSA-2023-6707 | Nov 11, 2023 |
| avahi-compat-howl-devel · RHEL 8 | 0:0.7-21.el8_9.1 | RHSA-2023:7836 | Dec 14, 2023 |
| avahi-compat-howl-devel · RHEL 9 | 0:0.8-15.el9 | RHSA-2023:6707 | Nov 7, 2023 |
| avahi-compat-howl-devel · almalinux 8 | 0.7-21.el8_9.1 | ALSA-2023:7836 | Dec 14, 2023 |
| avahi-compat-howl-devel · almalinux 9 | 0.8-15.el9 | ALSA-2023:6707 | Nov 7, 2023 |
| avahi-compat-howl-devel · ol 8 | 0:0.7-21.el8_9.1 | ELSA-2023-7836 | Dec 15, 2023 |
| avahi-compat-howl-devel · ol 9 | 0:0.8-15.el9 | ELSA-2023-6707 | Nov 11, 2023 |
| avahi-compat-libdns_sd · RHEL 8 | 0:0.7-21.el8_9.1 | RHSA-2023:7836 | Dec 14, 2023 |
| avahi-compat-libdns_sd · RHEL 9 | 0:0.8-15.el9 | RHSA-2023:6707 | Nov 7, 2023 |
| avahi-compat-libdns_sd · almalinux 8 | 0.7-21.el8_9.1 | ALSA-2023:7836 | Dec 14, 2023 |
| avahi-compat-libdns_sd · almalinux 9 | 0.8-15.el9 | ALSA-2023:6707 | Nov 7, 2023 |
| avahi-compat-libdns_sd · ol 8 | 0:0.7-21.el8_9.1 | ELSA-2023-7836 | Dec 15, 2023 |
| avahi-compat-libdns_sd · ol 9 | 0:0.8-15.el9 | ELSA-2023-6707 | Nov 11, 2023 |
| avahi-compat-libdns_sd-devel · RHEL 8 | 0:0.7-21.el8_9.1 | RHSA-2023:7836 | Dec 14, 2023 |
| avahi-compat-libdns_sd-devel · RHEL 9 | 0:0.8-15.el9 | RHSA-2023:6707 | Nov 7, 2023 |
| avahi-compat-libdns_sd-devel · almalinux 8 | 0.7-21.el8_9.1 | ALSA-2023:7836 | Dec 14, 2023 |
| avahi-compat-libdns_sd-devel · almalinux 9 | 0.8-15.el9 | ALSA-2023:6707 | Nov 7, 2023 |
| avahi-compat-libdns_sd-devel · ol 8 | 0:0.7-21.el8_9.1 | ELSA-2023-7836 | Dec 15, 2023 |
| avahi-compat-libdns_sd-devel · ol 9 | 0:0.8-15.el9 | ELSA-2023-6707 | Nov 11, 2023 |
| avahi-daemon · Ubuntu 18.04.6 LTS (bionic) | 0.7-3.1ubuntu1.3 | avahi-daemon 0.7-3.1ubuntu1.3 | Jun 2, 2021 |
| avahi-daemon · Ubuntu 20.04 LTS (focal) | 0.7-4ubuntu7.1 | avahi-daemon 0.7-4ubuntu7.1 | Jun 2, 2021 |
| avahi-devel · RHEL 8 | 0:0.7-21.el8_9.1 | RHSA-2023:7836 | Dec 14, 2023 |
| avahi-devel · RHEL 9 | 0:0.8-15.el9 | RHSA-2023:6707 | Nov 7, 2023 |
| avahi-devel · almalinux 8 | 0.7-21.el8_9.1 | ALSA-2023:7836 | Dec 14, 2023 |
| avahi-devel · almalinux 9 | 0.8-15.el9 | ALSA-2023:6707 | Nov 7, 2023 |
| avahi-devel · ol 8 | 0:0.7-21.el8_9.1 | ELSA-2023-7836 | Dec 15, 2023 |
| avahi-devel · ol 9 | 0:0.8-15.el9 | ELSA-2023-6707 | Nov 11, 2023 |
| avahi-discover · Ubuntu 18.04.6 LTS (bionic) | 0.7-3.1ubuntu1.3 | avahi-discover 0.7-3.1ubuntu1.3 | Jun 2, 2021 |
| avahi-discover · Ubuntu 20.04 LTS (focal) | 0.7-4ubuntu7.1 | avahi-discover 0.7-4ubuntu7.1 | Jun 2, 2021 |
| avahi-dnsconfd · Ubuntu 18.04.6 LTS (bionic) | 0.7-3.1ubuntu1.3 | avahi-dnsconfd 0.7-3.1ubuntu1.3 | Jun 2, 2021 |
| avahi-dnsconfd · Ubuntu 20.04 LTS (focal) | 0.7-4ubuntu7.1 | avahi-dnsconfd 0.7-4ubuntu7.1 | Jun 2, 2021 |
| avahi-glib · RHEL 8 | 0:0.7-21.el8_9.1 | RHSA-2023:7836 | Dec 14, 2023 |
| avahi-glib · RHEL 9 | 0:0.8-15.el9 | RHSA-2023:6707 | Nov 7, 2023 |
| avahi-glib · almalinux 8 | 0.7-21.el8_9.1 | ALSA-2023:7836 | Dec 14, 2023 |
| avahi-glib · almalinux 9 | 0.8-15.el9 | ALSA-2023:6707 | Nov 7, 2023 |
| avahi-glib · ol 8 | 0:0.7-21.el8_9.1 | ELSA-2023-7836 | Dec 15, 2023 |
| avahi-glib · ol 9 | 0:0.8-15.el9 | ELSA-2023-6707 | Nov 11, 2023 |
| avahi-glib-devel · RHEL 8 | 0:0.7-21.el8_9.1 | RHSA-2023:7836 | Dec 14, 2023 |
| avahi-glib-devel · RHEL 9 | 0:0.8-15.el9 | RHSA-2023:6707 | Nov 7, 2023 |
| avahi-glib-devel · almalinux 8 | 0.7-21.el8_9.1 | ALSA-2023:7836 | Dec 14, 2023 |
| avahi-glib-devel · almalinux 9 | 0.8-15.el9 | ALSA-2023:6707 | Nov 7, 2023 |
| avahi-glib-devel · ol 8 | 0:0.7-21.el8_9.1 | ELSA-2023-7836 | Dec 15, 2023 |
| avahi-glib-devel · ol 9 | 0:0.8-15.el9 | ELSA-2023-6707 | Nov 11, 2023 |
| avahi-gobject · RHEL 8 | 0:0.7-21.el8_9.1 | RHSA-2023:7836 | Dec 14, 2023 |
| avahi-gobject · almalinux 8 | 0.7-21.el8_9.1 | ALSA-2023:7836 | Dec 14, 2023 |
| avahi-gobject · ol 8 | 0:0.7-21.el8_9.1 | ELSA-2023-7836 | Dec 15, 2023 |
| avahi-gobject-devel · RHEL 8 | 0:0.7-21.el8_9.1 | RHSA-2023:7836 | Dec 14, 2023 |
| avahi-gobject-devel · almalinux 8 | 0.7-21.el8_9.1 | ALSA-2023:7836 | Dec 14, 2023 |
| avahi-gobject-devel · ol 8 | 0:0.7-21.el8_9.1 | ELSA-2023-7836 | Dec 15, 2023 |
| avahi-libs · RHEL 8 | 0:0.7-21.el8_9.1 | RHSA-2023:7836 | Dec 14, 2023 |
| avahi-libs · RHEL 9 | 0:0.8-15.el9 | RHSA-2023:6707 | Nov 7, 2023 |
| avahi-libs · almalinux 8 | 0.7-21.el8_9.1 | ALSA-2023:7836 | Dec 14, 2023 |
| avahi-libs · almalinux 9 | 0.8-15.el9 | ALSA-2023:6707 | Nov 7, 2023 |
| avahi-libs · ol 8 | 0:0.7-21.el8_9.1 | ELSA-2023-7836 | Dec 15, 2023 |
| avahi-libs · ol 9 | 0:0.8-15.el9 | ELSA-2023-6707 | Nov 11, 2023 |
| avahi-tools · RHEL 8 | 0:0.7-21.el8_9.1 | RHSA-2023:7836 | Dec 14, 2023 |
| avahi-tools · RHEL 9 | 0:0.8-15.el9 | RHSA-2023:6707 | Nov 7, 2023 |
| avahi-tools · almalinux 8 | 0.7-21.el8_9.1 | ALSA-2023:7836 | Dec 14, 2023 |
| avahi-tools · almalinux 9 | 0.8-15.el9 | ALSA-2023:6707 | Nov 7, 2023 |
| avahi-tools · ol 8 | 0:0.7-21.el8_9.1 | ELSA-2023-7836 | Dec 15, 2023 |
| avahi-tools · ol 9 | 0:0.8-15.el9 | ELSA-2023-6707 | Nov 11, 2023 |
| avahi-ui · RHEL 8 | 0:0.7-21.el8_9.1 | RHSA-2023:7836 | Dec 14, 2023 |
| avahi-ui · almalinux 8 | 0.7-21.el8_9.1 | ALSA-2023:7836 | Dec 14, 2023 |
| avahi-ui · ol 8 | 0:0.7-21.el8_9.1 | ELSA-2023-7836 | Dec 15, 2023 |
| avahi-ui-devel · RHEL 8 | 0:0.7-21.el8_9.1 | RHSA-2023:7836 | Dec 14, 2023 |
| avahi-ui-devel · almalinux 8 | 0.7-21.el8_9.1 | ALSA-2023:7836 | Dec 14, 2023 |
| avahi-ui-devel · ol 8 | 0:0.7-21.el8_9.1 | ELSA-2023-7836 | Dec 15, 2023 |
| avahi-ui-gtk3 · RHEL 8 | 0:0.7-21.el8_9.1 | RHSA-2023:7836 | Dec 14, 2023 |
| avahi-ui-gtk3 · almalinux 8 | 0.7-21.el8_9.1 | ALSA-2023:7836 | Dec 14, 2023 |
| avahi-ui-gtk3 · ol 8 | 0:0.7-21.el8_9.1 | ELSA-2023-7836 | Dec 15, 2023 |
| avahi-ui-utils · Ubuntu 18.04.6 LTS (bionic) | 0.7-3.1ubuntu1.3 | avahi-ui-utils 0.7-3.1ubuntu1.3 | Jun 2, 2021 |
| avahi-ui-utils · Ubuntu 20.04 LTS (focal) | 0.7-4ubuntu7.1 | avahi-ui-utils 0.7-4ubuntu7.1 | Jun 2, 2021 |
| avahi-utils · Ubuntu 18.04.6 LTS (bionic) | 0.7-3.1ubuntu1.3 | avahi-utils 0.7-3.1ubuntu1.3 | Jun 2, 2021 |
| avahi-utils · Ubuntu 20.04 LTS (focal) | 0.7-4ubuntu7.1 | avahi-utils 0.7-4ubuntu7.1 | Jun 2, 2021 |
| gir1.2-avahi-0.6 · Ubuntu 18.04.6 LTS (bionic) | 0.7-3.1ubuntu1.3 | gir1.2-avahi-0.6 0.7-3.1ubuntu1.3 | Jun 2, 2021 |
| gir1.2-avahi-0.6 · Ubuntu 20.04 LTS (focal) | 0.7-4ubuntu7.1 | gir1.2-avahi-0.6 0.7-4ubuntu7.1 | Jun 2, 2021 |
| libavahi-client3 · Ubuntu 18.04.6 LTS (bionic) | 0.7-3.1ubuntu1.3 | libavahi-client3 0.7-3.1ubuntu1.3 | Jun 2, 2021 |
| libavahi-client3 · Ubuntu 20.04 LTS (focal) | 0.7-4ubuntu7.1 | libavahi-client3 0.7-4ubuntu7.1 | Jun 2, 2021 |
| libavahi-common-data · Ubuntu 18.04.6 LTS (bionic) | 0.7-3.1ubuntu1.3 | libavahi-common-data 0.7-3.1ubuntu1.3 | Jun 2, 2021 |
| libavahi-common-data · Ubuntu 20.04 LTS (focal) | 0.7-4ubuntu7.1 | libavahi-common-data 0.7-4ubuntu7.1 | Jun 2, 2021 |
| libavahi-common3 · Ubuntu 18.04.6 LTS (bionic) | 0.7-3.1ubuntu1.3 | libavahi-common3 0.7-3.1ubuntu1.3 | Jun 2, 2021 |
| libavahi-common3 · Ubuntu 20.04 LTS (focal) | 0.7-4ubuntu7.1 | libavahi-common3 0.7-4ubuntu7.1 | Jun 2, 2021 |
| libavahi-compat-libdnssd1 · Ubuntu 18.04.6 LTS (bionic) | 0.7-3.1ubuntu1.3 | libavahi-compat-libdnssd1 0.7-3.1ubuntu1.3 | Jun 2, 2021 |
| libavahi-compat-libdnssd1 · Ubuntu 20.04 LTS (focal) | 0.7-4ubuntu7.1 | libavahi-compat-libdnssd1 0.7-4ubuntu7.1 | Jun 2, 2021 |
| libavahi-core7 · Ubuntu 18.04.6 LTS (bionic) | 0.7-3.1ubuntu1.3 | libavahi-core7 0.7-3.1ubuntu1.3 | Jun 2, 2021 |
| libavahi-core7 · Ubuntu 20.04 LTS (focal) | 0.7-4ubuntu7.1 | libavahi-core7 0.7-4ubuntu7.1 | Jun 2, 2021 |
| libavahi-glib1 · Ubuntu 18.04.6 LTS (bionic) | 0.7-3.1ubuntu1.3 | libavahi-glib1 0.7-3.1ubuntu1.3 | Jun 2, 2021 |
| libavahi-glib1 · Ubuntu 20.04 LTS (focal) | 0.7-4ubuntu7.1 | libavahi-glib1 0.7-4ubuntu7.1 | Jun 2, 2021 |
| libavahi-gobject0 · Ubuntu 18.04.6 LTS (bionic) | 0.7-3.1ubuntu1.3 | libavahi-gobject0 0.7-3.1ubuntu1.3 | Jun 2, 2021 |
| libavahi-gobject0 · Ubuntu 20.04 LTS (focal) | 0.7-4ubuntu7.1 | libavahi-gobject0 0.7-4ubuntu7.1 | Jun 2, 2021 |
| libavahi-ui-gtk3-0 · Ubuntu 18.04.6 LTS (bionic) | 0.7-3.1ubuntu1.3 | libavahi-ui-gtk3-0 0.7-3.1ubuntu1.3 | Jun 2, 2021 |
| libavahi-ui-gtk3-0 · Ubuntu 20.04 LTS (focal) | 0.7-4ubuntu7.1 | libavahi-ui-gtk3-0 0.7-4ubuntu7.1 | Jun 2, 2021 |
| python-avahi · Ubuntu 18.04.6 LTS (bionic) | 0.7-3.1ubuntu1.3 | python-avahi 0.7-3.1ubuntu1.3 | Jun 2, 2021 |
| python-avahi · Ubuntu 20.04 LTS (focal) | 0.7-4ubuntu7.1 | python-avahi 0.7-4ubuntu7.1 | Jun 2, 2021 |
| python3-avahi · RHEL 8 | 0:0.7-21.el8_9.1 | RHSA-2023:7836 | Dec 14, 2023 |
| python3-avahi · almalinux 8 | 0.7-21.el8_9.1 | ALSA-2023:7836 | Dec 14, 2023 |
| python3-avahi · ol 8 | 0:0.7-21.el8_9.1 | ELSA-2023-7836 | Dec 15, 2023 |
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