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Vulnerabilities / CVE-2017-6519

critical

CVE-2017-6519

avahi: Multicast DNS responds to unicast queries outside of local network

Published Modified CWE 346
In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

NVD9.1CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Red Hat5.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L

Trivy's own label is CRITICAL. Rated critical by NVD, CBL-Mariner. Rated lower by Red Hat (low), Amazon (low), Oracle (low), Ubuntu (low).

Description

avahi-daemon in Avahi through 0.6.32 and 0.7 inadvertently responds to IPv6 unicast queries with source addresses that are not on-link, which allows remote attackers to cause a denial of service (traffic amplification) and may cause information leakage by obtaining potentially sensitive information from the responding device via port-5353 UDP packets. NOTE: this may overlap CVE-2015-2809.

Affected packages and fixed versions

SourcePackageFixed in
CBL-Mariner 2.0avahi0:0.8-1.cm2
alpine 3.10avahi0.7-r2
alpine 3.11avahi0.7-r2
alpine 3.12avahi0.7-r2
alpine 3.13avahi0.7-r2
alpine 3.14avahi0.7-r2
alpine 3.15avahi0.7-r2
alpine 3.16avahi0.7-r2
alpine 3.17avahi0.7-r2
alpine 3.18avahi0.7-r2
alpine 3.19avahi0.7-r2
alpine 3.20avahi0.7-r2
Show all 134 entries from 44 sources
SourcePackageFixed in
CBL-Mariner 2.0avahi0:0.8-1.cm2
alpine 3.10avahi0.7-r2
alpine 3.11avahi0.7-r2
alpine 3.12avahi0.7-r2
alpine 3.13avahi0.7-r2
alpine 3.14avahi0.7-r2
alpine 3.15avahi0.7-r2
alpine 3.16avahi0.7-r2
alpine 3.17avahi0.7-r2
alpine 3.18avahi0.7-r2
alpine 3.19avahi0.7-r2
alpine 3.20avahi0.7-r2
alpine 3.21avahi0.7-r2
alpine 3.22avahi0.7-r2
alpine 3.23avahi0.7-r2
alpine 3.24avahi0.7-r2
alpine 3.7avahi0.6.32-r5
alpine 3.8avahi0.7-r2
alpine 3.9avahi0.7-r2
alpine edgeavahi0.7-r2
amazon linux 2avahi0.6.31-20.amzn2
amazon linux 2avahi-autoipd0.6.31-20.amzn2
amazon linux 2avahi-compat-howl0.6.31-20.amzn2
amazon linux 2avahi-compat-howl-devel0.6.31-20.amzn2
amazon linux 2avahi-compat-libdns_sd0.6.31-20.amzn2
amazon linux 2avahi-compat-libdns_sd-devel0.6.31-20.amzn2
amazon linux 2avahi-debuginfo0.6.31-20.amzn2
amazon linux 2avahi-devel0.6.31-20.amzn2
amazon linux 2avahi-dnsconfd0.6.31-20.amzn2
amazon linux 2avahi-glib0.6.31-20.amzn2
amazon linux 2avahi-glib-devel0.6.31-20.amzn2
amazon linux 2avahi-gobject0.6.31-20.amzn2
amazon linux 2avahi-gobject-devel0.6.31-20.amzn2
amazon linux 2avahi-libs0.6.31-20.amzn2
amazon linux 2avahi-qt30.6.31-20.amzn2
amazon linux 2avahi-qt3-devel0.6.31-20.amzn2
amazon linux 2avahi-qt40.6.31-20.amzn2
amazon linux 2avahi-qt4-devel0.6.31-20.amzn2
amazon linux 2avahi-tools0.6.31-20.amzn2
amazon linux 2avahi-ui0.6.31-20.amzn2
amazon linux 2avahi-ui-devel0.6.31-20.amzn2
amazon linux 2avahi-ui-gtk30.6.31-20.amzn2
amazon linux 2avahi-ui-tools0.6.31-20.amzn2
debian 11avahi0.7-5
debian 12avahi0.7-5
debian 13avahi0.7-5
debian 14avahi0.7-5
echoavahi0.7-5
Oracle Linux 7avahi0.6.31-20.el7
Oracle Linux 7avahi-autoipd0.6.31-20.el7
Oracle Linux 7avahi-compat-howl0.6.31-20.el7
Oracle Linux 7avahi-compat-howl-devel0.6.31-20.el7
Oracle Linux 7avahi-compat-libdns_sd0.6.31-20.el7
Oracle Linux 7avahi-compat-libdns_sd-devel0.6.31-20.el7
Oracle Linux 7avahi-devel0.6.31-20.el7
Oracle Linux 7avahi-dnsconfd0.6.31-20.el7
Oracle Linux 7avahi-glib0.6.31-20.el7
Oracle Linux 7avahi-glib-devel0.6.31-20.el7
Oracle Linux 7avahi-gobject0.6.31-20.el7
Oracle Linux 7avahi-gobject-devel0.6.31-20.el7
Oracle Linux 7avahi-libs0.6.31-20.el7
Oracle Linux 7avahi-qt30.6.31-20.el7
Oracle Linux 7avahi-qt3-devel0.6.31-20.el7
Oracle Linux 7avahi-qt40.6.31-20.el7
Oracle Linux 7avahi-qt4-devel0.6.31-20.el7
Oracle Linux 7avahi-tools0.6.31-20.el7
Oracle Linux 7avahi-ui0.6.31-20.el7
Oracle Linux 7avahi-ui-devel0.6.31-20.el7
Oracle Linux 7avahi-ui-gtk30.6.31-20.el7
Oracle Linux 7avahi-ui-tools0.6.31-20.el7
rapidfort alma 8avahino fix listed
rapidfort alma 8avahi-autoipdno fix listed
rapidfort alma 8avahi-glibno fix listed
rapidfort alma 8avahi-libsno fix listed
rapidfort alma 8avahi-toolsno fix listed
rapidfort alma 9avahino fix listed
rapidfort alma 9avahi-autoipdno fix listed
rapidfort alma 9avahi-glibno fix listed
rapidfort alma 9avahi-libsno fix listed
rapidfort alma 9avahi-toolsno fix listed
rapidfort Oracle Linux 9avahino fix listed
rapidfort Oracle Linux 9avahi-autoipdno fix listed
rapidfort Oracle Linux 9avahi-glibno fix listed
rapidfort Oracle Linux 9avahi-libsno fix listed
rapidfort Oracle Linux 9avahi-toolsno fix listed
rapidfort Red Hat 9avahino fix listed
rapidfort Red Hat 9avahi-glibno fix listed
rapidfort Red Hat 9avahi-libsno fix listed
rapidfort Red Hat 9rf-avahino fix listed
rapidfort Red Hat 9rf-avahi-glibno fix listed
rapidfort Red Hat 9rf-avahi-libsno fix listed
rapidfort rocky 8avahino fix listed
rapidfort rocky 8avahi-autoipdno fix listed
rapidfort rocky 8avahi-glibno fix listed
rapidfort rocky 8avahi-libsno fix listed
rapidfort rocky 8avahi-toolsno fix listed
rapidfort rocky 9avahino fix listed
rapidfort rocky 9avahi-autoipdno fix listed
rapidfort rocky 9avahi-glibno fix listed
rapidfort rocky 9avahi-libsno fix listed
rapidfort rocky 9avahi-toolsno fix listed
Red Hatavahino fix listed
Red Hatavahi-autoipdno fix listed
Red Hatavahi-compat-howlno fix listed
Red Hatavahi-compat-howl-develno fix listed
Red Hatavahi-compat-libdns_sdno fix listed
Red Hatavahi-compat-libdns_sd-develno fix listed
Red Hatavahi-develno fix listed
Red Hatavahi-dnsconfdno fix listed
Red Hatavahi-glibno fix listed
Red Hatavahi-glib-develno fix listed
Red Hatavahi-gobjectno fix listed
Red Hatavahi-gobject-develno fix listed
Red Hatavahi-libsno fix listed
Red Hatavahi-qt3no fix listed
Red Hatavahi-qt3-develno fix listed
Red Hatavahi-qt4no fix listed
Red Hatavahi-qt4-develno fix listed
Red Hatavahi-toolsno fix listed
Red Hatavahi-uino fix listed
Red Hatavahi-ui-develno fix listed
Red Hatavahi-ui-gtk3no fix listed
Red Hatavahi-ui-toolsno fix listed
Red Hatpython3-avahino fix listed
root.io alpine 3.18rootio-avahi0.7-r2
root.io debian 12rootio-avahi0.7-5
root.io debian 13rootio-avahi0.7-5
ubuntu 14.04avahi0.6.31-4ubuntu1.3
ubuntu 14.04-ESMavahi0.6.31-4ubuntu1.3
ubuntu 16.04avahi0.6.32~rc+dfsg-1ubuntu2.3
ubuntu 16.04-ESMavahi0.6.32~rc+dfsg-1ubuntu2.3
ubuntu 18.04avahi0.7-3.1ubuntu1.2
ubuntu 18.04-ESMavahi0.7-3.1ubuntu1.2
ubuntu 18.10avahi0.7-4ubuntu2.1

References

All 15 references

Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.