ubuntu-cve-2017-6519
Vulnerability from osv_ubuntu
Published
2017-04-30 00:00
Modified
2026-04-22 07:38
Summary
Details
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.
Severity
9.1 (Critical)
9.1 (Critical)
N/A (UNKNOWN)
References
{
"affected": [
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "avahi-autoipd",
"binary_version": "0.6.31-4ubuntu1.3"
},
{
"binary_name": "avahi-daemon",
"binary_version": "0.6.31-4ubuntu1.3"
},
{
"binary_name": "avahi-discover",
"binary_version": "0.6.31-4ubuntu1.3"
},
{
"binary_name": "avahi-dnsconfd",
"binary_version": "0.6.31-4ubuntu1.3"
},
{
"binary_name": "avahi-ui-utils",
"binary_version": "0.6.31-4ubuntu1.3"
},
{
"binary_name": "avahi-utils",
"binary_version": "0.6.31-4ubuntu1.3"
},
{
"binary_name": "libavahi-client3",
"binary_version": "0.6.31-4ubuntu1.3"
},
{
"binary_name": "libavahi-common-data",
"binary_version": "0.6.31-4ubuntu1.3"
},
{
"binary_name": "libavahi-common3",
"binary_version": "0.6.31-4ubuntu1.3"
},
{
"binary_name": "libavahi-compat-libdnssd1",
"binary_version": "0.6.31-4ubuntu1.3"
},
{
"binary_name": "libavahi-core7",
"binary_version": "0.6.31-4ubuntu1.3"
},
{
"binary_name": "libavahi-glib1",
"binary_version": "0.6.31-4ubuntu1.3"
},
{
"binary_name": "libavahi-gobject0",
"binary_version": "0.6.31-4ubuntu1.3"
},
{
"binary_name": "libavahi-qt4-1",
"binary_version": "0.6.31-4ubuntu1.3"
},
{
"binary_name": "libavahi-ui-gtk3-0",
"binary_version": "0.6.31-4ubuntu1.3"
},
{
"binary_name": "libavahi-ui0",
"binary_version": "0.6.31-4ubuntu1.3"
},
{
"binary_name": "python-avahi",
"binary_version": "0.6.31-4ubuntu1.3"
}
]
},
"package": {
"ecosystem": "Ubuntu:14.04:LTS",
"name": "avahi",
"purl": "pkg:deb/ubuntu/avahi@0.6.31-4ubuntu1.3?arch=source\u0026distro=trusty"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.6.31-4ubuntu1.3"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.6.31-2ubuntu4",
"0.6.31-2ubuntu5",
"0.6.31-3ubuntu1",
"0.6.31-4ubuntu1",
"0.6.31-4ubuntu1.1",
"0.6.31-4ubuntu1.2"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "avahi-autoipd",
"binary_version": "0.6.32~rc+dfsg-1ubuntu2.3"
},
{
"binary_name": "avahi-daemon",
"binary_version": "0.6.32~rc+dfsg-1ubuntu2.3"
},
{
"binary_name": "avahi-discover",
"binary_version": "0.6.32~rc+dfsg-1ubuntu2.3"
},
{
"binary_name": "avahi-dnsconfd",
"binary_version": "0.6.32~rc+dfsg-1ubuntu2.3"
},
{
"binary_name": "avahi-ui-utils",
"binary_version": "0.6.32~rc+dfsg-1ubuntu2.3"
},
{
"binary_name": "avahi-utils",
"binary_version": "0.6.32~rc+dfsg-1ubuntu2.3"
},
{
"binary_name": "libavahi-client3",
"binary_version": "0.6.32~rc+dfsg-1ubuntu2.3"
},
{
"binary_name": "libavahi-common-data",
"binary_version": "0.6.32~rc+dfsg-1ubuntu2.3"
},
{
"binary_name": "libavahi-common3",
"binary_version": "0.6.32~rc+dfsg-1ubuntu2.3"
},
{
"binary_name": "libavahi-compat-libdnssd1",
"binary_version": "0.6.32~rc+dfsg-1ubuntu2.3"
},
{
"binary_name": "libavahi-core7",
"binary_version": "0.6.32~rc+dfsg-1ubuntu2.3"
},
{
"binary_name": "libavahi-glib1",
"binary_version": "0.6.32~rc+dfsg-1ubuntu2.3"
},
{
"binary_name": "libavahi-gobject0",
"binary_version": "0.6.32~rc+dfsg-1ubuntu2.3"
},
{
"binary_name": "libavahi-qt4-1",
"binary_version": "0.6.32~rc+dfsg-1ubuntu2.3"
},
{
"binary_name": "libavahi-ui-gtk3-0",
"binary_version": "0.6.32~rc+dfsg-1ubuntu2.3"
},
{
"binary_name": "libavahi-ui0",
"binary_version": "0.6.32~rc+dfsg-1ubuntu2.3"
},
{
"binary_name": "python-avahi",
"binary_version": "0.6.32~rc+dfsg-1ubuntu2.3"
}
]
},
"package": {
"ecosystem": "Ubuntu:16.04:LTS",
"name": "avahi",
"purl": "pkg:deb/ubuntu/avahi@0.6.32~rc+dfsg-1ubuntu2.3?arch=source\u0026distro=xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.6.32~rc+dfsg-1ubuntu2.3"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.6.31-4ubuntu4",
"0.6.32~rc+dfsg-1ubuntu2",
"0.6.32~rc+dfsg-1ubuntu2.1",
"0.6.32~rc+dfsg-1ubuntu2.2"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "avahi-autoipd",
"binary_version": "0.7-3.1ubuntu1.2"
},
{
"binary_name": "avahi-daemon",
"binary_version": "0.7-3.1ubuntu1.2"
},
{
"binary_name": "avahi-discover",
"binary_version": "0.7-3.1ubuntu1.2"
},
{
"binary_name": "avahi-dnsconfd",
"binary_version": "0.7-3.1ubuntu1.2"
},
{
"binary_name": "avahi-ui-utils",
"binary_version": "0.7-3.1ubuntu1.2"
},
{
"binary_name": "avahi-utils",
"binary_version": "0.7-3.1ubuntu1.2"
},
{
"binary_name": "gir1.2-avahi-0.6",
"binary_version": "0.7-3.1ubuntu1.2"
},
{
"binary_name": "libavahi-client3",
"binary_version": "0.7-3.1ubuntu1.2"
},
{
"binary_name": "libavahi-common-data",
"binary_version": "0.7-3.1ubuntu1.2"
},
{
"binary_name": "libavahi-common3",
"binary_version": "0.7-3.1ubuntu1.2"
},
{
"binary_name": "libavahi-compat-libdnssd1",
"binary_version": "0.7-3.1ubuntu1.2"
},
{
"binary_name": "libavahi-core7",
"binary_version": "0.7-3.1ubuntu1.2"
},
{
"binary_name": "libavahi-glib1",
"binary_version": "0.7-3.1ubuntu1.2"
},
{
"binary_name": "libavahi-gobject0",
"binary_version": "0.7-3.1ubuntu1.2"
},
{
"binary_name": "libavahi-ui-gtk3-0",
"binary_version": "0.7-3.1ubuntu1.2"
},
{
"binary_name": "python-avahi",
"binary_version": "0.7-3.1ubuntu1.2"
}
]
},
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "avahi",
"purl": "pkg:deb/ubuntu/avahi@0.7-3.1ubuntu1.2?arch=source\u0026distro=bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.7-3.1ubuntu1.2"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.6.32-1ubuntu1",
"0.7-3ubuntu1",
"0.7-3ubuntu2",
"0.7-3.1ubuntu1",
"0.7-3.1ubuntu1.1"
]
}
],
"aliases": [],
"details": "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.",
"id": "UBUNTU-CVE-2017-6519",
"modified": "2026-04-22T07:38:12Z",
"published": "2017-04-30T00:00:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2017-6519"
},
{
"type": "REPORT",
"url": "https://www.secfu.net/advisories"
},
{
"type": "REPORT",
"url": "https://www.kb.cert.org/vuls/id/550620"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-3876-1"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-3876-2"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2017-6519"
}
],
"related": [
"USN-3876-1",
"USN-3876-2"
],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "low",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2017-6519"
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
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