CVE-2017-6519

CVE	CVE-2017-6519
State	PUBLIC
Assigner	[email protected]
Source Priority	CVE Program / NVD first with legacy fallback
Published	2017-05-01 01:59:00 UTC
Updated	2023-11-07 02:49:00 UTC
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.

Problem Types: CWE-346

Type	Vendor	Product	Version	Update	Edition	Language
Application	Avahi	Avahi	0.7	All	All	All
Application	Avahi	Avahi	All	All	All	All
Application	Avahi	Avahi	0.7	All	All	All
Operating System	Canonical	Ubuntu Linux	12.04	All	All	All
Operating System	Canonical	Ubuntu Linux	14.04	All	All	All
Operating System	Canonical	Ubuntu Linux	16.04	All	All	All
Operating System	Canonical	Ubuntu Linux	18.04	All	All	All
Operating System	Canonical	Ubuntu Linux	18.10	All	All	All
Operating System	Canonical	Ubuntu Linux	12.04	All	All	All
Operating System	Canonical	Ubuntu Linux	14.04	All	All	All
Operating System	Canonical	Ubuntu Linux	16.04	All	All	All
Operating System	Canonical	Ubuntu Linux	18.04	All	All	All
Operating System	Canonical	Ubuntu Linux	18.10	All	All	All

Reference	Source	Link	Tags
Pony Mail!		lists.apache.org
Pony Mail!	MLIST	lists.apache.org
Missing link-local checks in Avahi makes DDoS with mDNS traffic reflection possible · Issue #203 · lathiat/avahi · GitHub	MISC	github.com	Exploit, Third Party Advisory
1426712 – (CVE-2017-6519) CVE-2017-6519 avahi: Multicast DNS responds to unicast queries outside of local network	MISC	bugzilla.redhat.com	Issue Tracking, Patch, Third Party Advisory
Missing link-local checks in Avahi makes DDoS with mDNS traffic reflection possible · Issue #203 · lathiat/avahi · GitHub	MISC	github.com	Third Party Advisory
USN-3876-1: Avahi vulnerabilities \| Ubuntu security notices \| Ubuntu	UBUNTU	usn.ubuntu.com	Third Party Advisory
Avahi IPv6 Off-link Unicast mDNS Interaction - A few tools and articiles for IT security topics	MISC	www.secfu.net	Third Party Advisory
USN-3876-2: Avahi vulnerabilities \| Ubuntu security notices	UBUNTU	usn.ubuntu.com	Third Party Advisory
CVE Program record	CVE.ORG	www.cve.org	canonical
NVD vulnerability detail	NVD	nvd.nist.gov	canonical, analysis

No vendor comments have been submitted for this CVE.

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