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

🗓️ 31 Mar 2020 20:12:46Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 13 Views

Avahi daemon answers IPv6 unicast queries from non on-link hosts, enabling remote denial of service.

Related
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Refs
ReporterTitlePublishedViews
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IBM Security Bulletins		Security Bulletin: Multiple Vulnerabilities in Hyper Converged Database
10 Nov 202522:11
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IBM Security Bulletins		Security Bulletin: IBM App Connect Enterprise Certified Container DesignerAuthoring operands are vulnerable to denial of service due to [CVE-2017-6519]
27 Jul 202316:39
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IBM Security Bulletins		Security Bulletin: IBM Watson Speech Services Cartridge for IBM Cloud Pak for Data is vulnerable to multiple Base OS issues
17 Oct 202400:12
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Tenable Nessus		Amazon Linux 2 : avahi (ALAS-2020-1502)
27 Oct 202000:00
–nessus
Tenable Nessus		CentOS 7 : avahi (RHSA-2020:1176)
10 Apr 202000:00
–nessus
Tenable Nessus		EulerOS 2.0 SP8 : avahi (EulerOS-SA-2019-1640)
27 Jun 201900:00
–nessus
Tenable Nessus		EulerOS 2.0 SP2 : avahi (EulerOS-SA-2019-1734)
22 Jul 201900:00
–nessus
Tenable Nessus		EulerOS 2.0 SP5 : avahi (EulerOS-SA-2019-1958)
23 Sep 201900:00
–nessus
Tenable Nessus		EulerOS 2.0 SP3 : avahi (EulerOS-SA-2019-2038)
24 Sep 201900:00
–nessus
Tenable Nessus		EulerOS Virtualization for ARM 64 3.0.3.0 : avahi (EulerOS-SA-2019-2315)
3 Dec 201900:00
–nessus
Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux7ppcavahi0:0.6.31-20.el7avahi-0:0.6.31-20.el7.ppc.rpm
Red Hat Enterprise Linux7ppc64avahi0:0.6.31-20.el7avahi-0:0.6.31-20.el7.ppc64.rpm
Red Hat Enterprise Linux7ppc64leavahi0:0.6.31-20.el7avahi-0:0.6.31-20.el7.ppc64le.rpm
Red Hat Enterprise Linux7s390avahi0:0.6.31-20.el7avahi-0:0.6.31-20.el7.s390.rpm
Red Hat Enterprise Linux7s390xavahi0:0.6.31-20.el7avahi-0:0.6.31-20.el7.s390x.rpm
Red Hat Enterprise Linux7x86_64avahi0:0.6.31-20.el7avahi-0:0.6.31-20.el7.x86_64.rpm
Red Hat Enterprise Linux7anyavahi0:0.6.31-20.el7.i686avahi-0:0.6.31-20.el7.i686.noarch.rpm
Red Hat Enterprise Linux7ppc64avahi-autoipd0:0.6.31-20.el7avahi-autoipd-0:0.6.31-20.el7.ppc64.rpm
Red Hat Enterprise Linux7ppc64leavahi-autoipd0:0.6.31-20.el7avahi-autoipd-0:0.6.31-20.el7.ppc64le.rpm
Red Hat Enterprise Linux7s390xavahi-autoipd0:0.6.31-20.el7avahi-autoipd-0:0.6.31-20.el7.s390x.rpm
Rows per page

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27 Jun 2026 03:58Current
6.8Medium risk
Vulners AI Score6.8
CVSS 26.4
CVSS 39.1
CVSS 3.19.1
EPSS0.03082
SSVC
CWE-200
avahiunicast queriesnon on linkdenial of serviceinformation leakage
13