Critical
dnstracer — security advisory
Stack-based buffer overflow in dnstracer through 1.9 allows attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a command line with a long name argument that is mishandled in a strcpy call for argv[0]. An example threat model is a web application that launches dnstracer with an untrusted name string.
- Products
- dnstracer
- Affected versions
- 1.10-1, 1.9-4, 1.9-5, 1.9-5build1, 1.9-6, 1.9-7, 1.9-7build1, 1.9-8, 1.9-8build1, 1.9-8build2
- Fixed versions
- Not specified
- CVEs
- CVE-2017-9430
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 00:22 UTC · Revision 1
Source evidence
Stack-based buffer overflow in dnstracer through 1.9 allows attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a command line with a long name argument that is mishandled in a strcpy call for argv[0]. An example threat model is a web application that launches dnstracer with an untrusted name string.
osv:UBUNTU-CVE-2017-9430
dnstracer
Fixed versions: Not specified
dnstracer
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dnstracer
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dnstracer
Fixed versions: Not specified
dnstracer
Fixed versions: Not specified
dnstracer
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dnstracer
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dnstracer
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dnstracer
Fixed versions: Not specified
Complete source record
{
"id": "9c892958cd311d30f9449f2f6311e3cdb5459d79da25c8724d4ef00c6b664702",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2017-9430",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2017-9430",
"summary": "Stack-based buffer overflow in dnstracer through 1.9 allows attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a command line with a long name argument that is mishandled in a strcpy call for argv[0]. An example threat model is a web application that launches dnstracer with an untrusted name string.",
"evidence": "osv:UBUNTU-CVE-2017-9430",
"products": [
{
"name": {
"value": "dnstracer",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.9-4",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
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"evidence": "/affected/1/package/name"
},
"prerequisites": [],
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"affected_versions": [
{
"value": "1.9-4",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
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"evidence": "/affected/2/package/name"
},
"prerequisites": [],
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"affected_versions": [
{
"value": "1.9-5",
"evidence": "/affected/2/versions"
}
]
},
{
"name": {
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"evidence": "/affected/3/package/name"
},
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"affected_versions": [
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"evidence": "/affected/3/versions"
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},
{
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"evidence": "/affected/4/package/name"
},
"prerequisites": [],
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"affected_versions": [
{
"value": "1.9-5build1",
"evidence": "/affected/4/versions"
},
{
"value": "1.9-6",
"evidence": "/affected/4/versions"
},
{
"value": "1.9-7",
"evidence": "/affected/4/versions"
},
{
"value": "1.9-7build1",
"evidence": "/affected/4/versions"
}
]
},
{
"name": {
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"evidence": "/affected/5/package/name"
},
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"affected_versions": [
{
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"evidence": "/affected/5/versions"
},
{
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"evidence": "/affected/5/versions"
},
{
"value": "1.9-8build1",
"evidence": "/affected/5/versions"
}
]
},
{
"name": {
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"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.9-8build1",
"evidence": "/affected/6/versions"
}
]
},
{
"name": {
"value": "dnstracer",
"evidence": "/affected/7/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.9-8build2",
"evidence": "/affected/7/versions"
},
{
"value": "1.10-1",
"evidence": "/affected/7/versions"
}
]
},
{
"name": {
"value": "dnstracer",
"evidence": "/affected/8/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.9-8build1",
"evidence": "/affected/8/versions"
},
{
"value": "1.9-8build2",
"evidence": "/affected/8/versions"
}
]
}
],
"severity": "critical",
"structured": {
"id": "UBUNTU-CVE-2017-9430",
"aliases": [
"UBUNTU-CVE-2017-9430"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "low"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "dnstracer",
"purl": "pkg:deb/ubuntu/dnstracer?arch=source&distro=trusty",
"ecosystem": "Ubuntu:14.04:LTS"
},
"versions": [
"1.9-4"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-9430.json"
},
"ecosystem_specific": {
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{
"binary_name": "dnstracer",
"binary_version": "1.9-4"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "dnstracer",
"purl": "pkg:deb/ubuntu/dnstracer?arch=source&distro=xenial",
"ecosystem": "Ubuntu:16.04:LTS"
},
"versions": [
"1.9-4"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-9430.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "dnstracer",
"binary_version": "1.9-4"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "dnstracer",
"purl": "pkg:deb/ubuntu/dnstracer?arch=source&distro=bionic",
"ecosystem": "Ubuntu:18.04:LTS"
},
"versions": [
"1.9-5"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-9430.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "dnstracer",
"binary_version": "1.9-5"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "dnstracer",
"purl": "pkg:deb/ubuntu/dnstracer?arch=source&distro=focal",
"ecosystem": "Ubuntu:20.04:LTS"
},
"versions": [
"1.9-5"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-9430.json"
},
"ecosystem_specific": {
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{
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]
}
},
{
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],
"package": {
"name": "dnstracer",
"purl": "pkg:deb/ubuntu/dnstracer?arch=source&distro=jammy",
"ecosystem": "Ubuntu:22.04:LTS"
},
"versions": [
"1.9-5build1",
"1.9-6",
"1.9-7",
"1.9-7build1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-9430.json"
},
"ecosystem_specific": {
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{
"binary_name": "dnstracer",
"binary_version": "1.9-7build1"
}
]
}
},
{
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"package": {
"name": "dnstracer",
"purl": "pkg:deb/ubuntu/dnstracer?arch=source&distro=noble",
"ecosystem": "Ubuntu:24.04:LTS"
},
"versions": [
"1.9-7build1",
"1.9-8",
"1.9-8build1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-9430.json"
},
"ecosystem_specific": {
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{
"binary_name": "dnstracer",
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}
]
}
},
{
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{
"type": "ECOSYSTEM",
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{
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}
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],
"package": {
"name": "dnstracer",
"purl": "pkg:deb/ubuntu/dnstracer?arch=source&distro=questing",
"ecosystem": "Ubuntu:25.10"
},
"versions": [
"1.9-8build1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-9430.json"
},
"ecosystem_specific": {
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{
"binary_name": "dnstracer",
"binary_version": "1.9-8build1"
}
]
}
},
{
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{
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}
],
"package": {
"name": "dnstracer",
"purl": "pkg:deb/ubuntu/dnstracer?arch=source&distro=stonking",
"ecosystem": "Ubuntu:26.10"
},
"versions": [
"1.9-8build2",
"1.10-1"
],
"database_specific": {
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},
"ecosystem_specific": {
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{
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}
]
}
},
{
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{
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}
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],
"package": {
"name": "dnstracer",
"purl": "pkg:deb/ubuntu/dnstracer?arch=source&distro=resolute",
"ecosystem": "Ubuntu:26.04:LTS"
},
"versions": [
"1.9-8build1",
"1.9-8build2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-9430.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "dnstracer",
"binary_version": "1.9-8build2"
}
]
}
}
],
"modified": "2026-10-17T12:53:22.673541358Z",
"provider": "osv",
"upstream": [
"CVE-2017-9430"
],
"references": [
"https://ubuntu.com/security/CVE-2017-9430",
"https://cxsecurity.com/issue/WLB-2017060030",
"https://www.cve.org/CVERecord?id=CVE-2017-9430"
]
},
"related_cves": [
{
"value": "CVE-2017-9430",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 353429,
"published_at": "2017-06-05T11:29:00+00:00"
}