ubuntu-cve-2022-32983
Vulnerability from osv_ubuntu
Published
2022-06-20 16:15
Modified
2026-05-20 14:56
Summary
Details
Knot Resolver through 5.5.1 may allow DNS cache poisoning when there is an attempt to limit forwarding actions by filters.
Severity
5.3 (Medium)
N/A (UNKNOWN)
References
{
"affected": [
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "knot-resolver",
"binary_version": "1.0.0~beta3-1ubuntu0.1~esm1"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:16.04:LTS",
"name": "knot-resolver",
"purl": "pkg:deb/ubuntu/knot-resolver@1.0.0~beta3-1ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.0.0~beta2-123-g6134920-1",
"1.0.0~beta3-1",
"1.0.0~beta3-1ubuntu0.1~esm1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "knot-resolver",
"binary_version": "2.1.1-1ubuntu0.1~esm2"
},
{
"binary_name": "knot-resolver-module-http",
"binary_version": "2.1.1-1ubuntu0.1~esm2"
},
{
"binary_name": "libkres6",
"binary_version": "2.1.1-1ubuntu0.1~esm2"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:18.04:LTS",
"name": "knot-resolver",
"purl": "pkg:deb/ubuntu/knot-resolver@2.1.1-1ubuntu0.1~esm2?arch=source\u0026distro=esm-apps/bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.3.3-1",
"1.5.0-4",
"1.5.1-1",
"1.5.2-1",
"2.0.0-3",
"2.1.0-1",
"2.1.0-2",
"2.1.1-1",
"2.1.1-1ubuntu0.1~esm2"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "knot-resolver",
"binary_version": "3.2.1-3ubuntu2.2"
},
{
"binary_name": "knot-resolver-module-http",
"binary_version": "3.2.1-3ubuntu2.2"
}
]
},
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "knot-resolver",
"purl": "pkg:deb/ubuntu/knot-resolver@3.2.1-3ubuntu2.2?arch=source\u0026distro=focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3.2.1-3",
"3.2.1-3ubuntu1",
"3.2.1-3ubuntu2",
"3.2.1-3ubuntu2.1",
"3.2.1-3ubuntu2.2"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "knot-resolver",
"binary_version": "5.4.4-1ubuntu0.1~esm1"
},
{
"binary_name": "knot-resolver-module-http",
"binary_version": "5.4.4-1ubuntu0.1~esm1"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:22.04:LTS",
"name": "knot-resolver",
"purl": "pkg:deb/ubuntu/knot-resolver@5.4.4-1ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"5.3.1-1",
"5.4.2-1",
"5.4.3-1",
"5.4.4-1",
"5.4.4-1ubuntu0.1~esm1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "knot-resolver",
"binary_version": "5.7.2-1"
},
{
"binary_name": "knot-resolver-module-http",
"binary_version": "5.7.2-1"
}
]
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "knot-resolver",
"purl": "pkg:deb/ubuntu/knot-resolver@5.7.2-1?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"5.6.0-1.1",
"5.7.0-1build1",
"5.7.1-1",
"5.7.2-1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "knot-resolver",
"binary_version": "5.7.5-1"
},
{
"binary_name": "knot-resolver-module-http",
"binary_version": "5.7.5-1"
}
]
},
"package": {
"ecosystem": "Ubuntu:25.10",
"name": "knot-resolver",
"purl": "pkg:deb/ubuntu/knot-resolver@5.7.5-1?arch=source\u0026distro=questing"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"5.7.4-2build1",
"5.7.5-1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "knot-resolver6",
"binary_version": "6.2.0-2"
},
{
"binary_name": "knot-resolver6-module-dnstap",
"binary_version": "6.2.0-2"
},
{
"binary_name": "knot-resolver6-module-http",
"binary_version": "6.2.0-2"
}
]
},
"package": {
"ecosystem": "Ubuntu:26.04:LTS",
"name": "knot-resolver",
"purl": "pkg:deb/ubuntu/knot-resolver@6.2.0-2?arch=source\u0026distro=resolute"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"5.7.5-1",
"6.0.15-4build1",
"6.0.17-1",
"6.2.0-2"
]
}
],
"aliases": [],
"details": "Knot Resolver through 5.5.1 may allow DNS cache poisoning when there is an attempt to limit forwarding actions by filters.",
"id": "UBUNTU-CVE-2022-32983",
"modified": "2026-05-20T14:56:02Z",
"published": "2022-06-20T16:15:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2022-32983"
},
{
"type": "REPORT",
"url": "https://knot-resolver.readthedocs.io/en/stable/modules-policy.html#forwarding"
},
{
"type": "REPORT",
"url": "https://github.com/CZ-NIC/knot-resolver/commit/ccb9d9794db5eb757c33becf65cb1cf48ecfd968"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-32983"
}
],
"related": [],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2022-32983"
]
}
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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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