All the vulnerabilites related to nic - knot_resolver
cve-2022-32983
Vulnerability from cvelistv5
Published
2022-06-20 15:05
Modified
2024-08-03 07:54
Severity ?
EPSS score ?
Summary
Knot Resolver through 5.5.1 may allow DNS cache poisoning when there is an attempt to limit forwarding actions by filters.
References
| ▼ | URL | Tags |
|---|---|---|
| https://github.com/CZ-NIC/knot-resolver/commit/ccb9d9794db5eb757c33becf65cb1cf48ecfd968 | x_refsource_MISC | |
| https://knot-resolver.readthedocs.io/en/stable/modules-policy.html#forwarding | x_refsource_MISC |
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cve-2018-10920
Vulnerability from cvelistv5
Published
2018-08-02 13:00
Modified
2024-08-05 07:54
Severity ?
EPSS score ?
Summary
Improper input validation bug in DNS resolver component of Knot Resolver before 2.4.1 allows remote attacker to poison cache.
References
| ▼ | URL | Tags |
|---|---|---|
| https://www.knot-resolver.cz/2018-08-02-knot-resolver-2.4.1.html | x_refsource_CONFIRM | |
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10920 | x_refsource_CONFIRM |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| ▼ | cz.nic | knot-resolver |
Version: before 2.4.1 |
|
|
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cve-2023-50387
Vulnerability from cvelistv5
Published
2024-02-14 00:00
Modified
2024-08-02 22:16
Severity ?
EPSS score ?
Summary
Certain DNSSEC aspects of the DNS protocol (in RFC 4033, 4034, 4035, 6840, and related RFCs) allow remote attackers to cause a denial of service (CPU consumption) via one or more DNSSEC responses, aka the "KeyTrap" issue. One of the concerns is that, when there is a zone with many DNSKEY and RRSIG records, the protocol specification implies that an algorithm must evaluate all combinations of DNSKEY and RRSIG records.
References
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cve-2013-5661
Vulnerability from cvelistv5
Published
2019-11-05 18:14
Modified
2024-08-06 17:15
Severity ?
EPSS score ?
Summary
Cache Poisoning issue exists in DNS Response Rate Limiting.
References
| ▼ | URL | Tags |
|---|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2013-5661 | x_refsource_MISC | |
| https://bugzilla.suse.com/show_bug.cgi?id=CVE-2013-5661 | x_refsource_MISC | |
| https://security-tracker.debian.org/tracker/CVE-2013-5661 | x_refsource_MISC |
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cve-2020-12667
Vulnerability from cvelistv5
Published
2020-05-19 00:00
Modified
2024-08-04 12:04
Severity ?
EPSS score ?
Summary
Knot Resolver before 5.1.1 allows traffic amplification via a crafted DNS answer from an attacker-controlled server, aka an "NXNSAttack" issue. This is triggered by random subdomains in the NSDNAME in NS records.
References
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cve-2018-1000002
Vulnerability from cvelistv5
Published
2018-01-22 18:00
Modified
2024-08-05 12:33
Severity ?
EPSS score ?
Summary
Improper input validation bugs in DNSSEC validators components in Knot Resolver (prior version 1.5.2) allow attacker in man-in-the-middle position to deny existence of some data in DNS via packet replay.
References
| ▼ | URL | Tags |
|---|---|---|
| https://www.knot-resolver.cz/2018-01-22-knot-resolver-1.5.2.html | x_refsource_CONFIRM |
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cve-2023-26249
Vulnerability from cvelistv5
Published
2023-02-21 00:00
Modified
2024-08-02 11:46
Severity ?
EPSS score ?
Summary
Knot Resolver before 5.6.0 enables attackers to consume its resources, launching amplification attacks and potentially causing a denial of service. Specifically, a single client query may lead to a hundred TCP connection attempts if a DNS server closes connections without providing a response.
References
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cve-2018-1110
Vulnerability from cvelistv5
Published
2021-03-30 01:55
Modified
2024-08-05 03:51
Severity ?
EPSS score ?
Summary
A flaw was found in knot-resolver before version 2.3.0. Malformed DNS messages may cause denial of service.
References
| ▼ | URL | Tags |
|---|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1944328 | x_refsource_MISC | |
| https://www.knot-resolver.cz/2018-04-23-knot-resolver-2.3.0.html | x_refsource_MISC |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| ▼ | n/a | knot-resolver |
Version: Knot Resolver 2.3.0 |
|
|
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cve-2019-10191
Vulnerability from cvelistv5
Published
2019-07-16 17:52
Modified
2024-08-04 22:17
Severity ?
EPSS score ?
Summary
A vulnerability was discovered in DNS resolver of knot resolver before version 4.1.0 which allows remote attackers to downgrade DNSSEC-secure domains to DNSSEC-insecure state, opening possibility of domain hijack using attacks against insecure DNS protocol.
References
| ▼ | URL | Tags |
|---|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10191 | x_refsource_CONFIRM | |
| https://www.knot-resolver.cz/2019-07-10-knot-resolver-4.1.0.html | x_refsource_CONFIRM | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VZV5YZZ5766UIG2TFLFJL6EESQNAP5X5/ | vendor-advisory, x_refsource_FEDORA | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TMSSWBHINIX4WE6UDXWM66L7JYEK6XS6/ | vendor-advisory, x_refsource_FEDORA | |
| https://lists.debian.org/debian-lts-announce/2024/04/msg00017.html |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| ▼ | CZ.NIC | knot-resolver |
Version: all before 4.1.0 |
|
|
|||
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cve-2022-40188
Vulnerability from cvelistv5
Published
2022-09-23 00:00
Modified
2024-08-03 12:14
Severity ?
EPSS score ?
Summary
Knot Resolver before 5.5.3 allows remote attackers to cause a denial of service (CPU consumption) because of algorithmic complexity. During an attack, an authoritative server must return large NS sets or address sets.
References
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cve-2019-19331
Vulnerability from cvelistv5
Published
2019-12-16 00:00
Modified
2024-08-05 02:16
Severity ?
EPSS score ?
Summary
knot-resolver before version 4.3.0 is vulnerable to denial of service through high CPU utilization. DNS replies with very many resource records might be processed very inefficiently, in extreme cases taking even several CPU seconds for each such uncached message. For example, a few thousand A records can be squashed into one DNS message (limit is 64kB).
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| ▼ | CZ.NIC | knot-resolver |
Version: 4.3.0 |
|
|
|||
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cve-2023-46317
Vulnerability from cvelistv5
Published
2023-10-22 00:00
Modified
2024-09-12 17:45
Severity ?
EPSS score ?
Summary
Knot Resolver before 5.7.0 performs many TCP reconnections upon receiving certain nonsensical responses from servers.
References
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cve-2021-40083
Vulnerability from cvelistv5
Published
2021-08-25 00:21
Modified
2024-08-04 02:27
Severity ?
EPSS score ?
Summary
Knot Resolver before 5.3.2 is prone to an assertion failure, triggerable by a remote attacker in an edge case (NSEC3 with too many iterations used for a positive wildcard proof).
References
| ▼ | URL | Tags |
|---|---|---|
| https://gitlab.nic.cz/knot/knot-resolver/-/merge_requests/1169 | x_refsource_MISC |
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cve-2019-10190
Vulnerability from cvelistv5
Published
2019-07-16 17:50
Modified
2024-08-04 22:17
Severity ?
EPSS score ?
Summary
A vulnerability was discovered in DNS resolver component of knot resolver through version 3.2.0 before 4.1.0 which allows remote attackers to bypass DNSSEC validation for non-existence answer. NXDOMAIN answer would get passed through to the client even if its DNSSEC validation failed, instead of sending a SERVFAIL packet. Caching is not affected by this particular bug but see CVE-2019-10191.
References
| ▼ | URL | Tags |
|---|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10190 | x_refsource_CONFIRM | |
| https://www.knot-resolver.cz/2019-07-10-knot-resolver-4.1.0.html | x_refsource_CONFIRM | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VZV5YZZ5766UIG2TFLFJL6EESQNAP5X5/ | vendor-advisory, x_refsource_FEDORA | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TMSSWBHINIX4WE6UDXWM66L7JYEK6XS6/ | vendor-advisory, x_refsource_FEDORA | |
| https://lists.debian.org/debian-lts-announce/2024/04/msg00017.html |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| ▼ | CZ.NIC | knot-resolver |
Version: from 3.2.0 before 4.1.0 |
|
|
|||
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Vulnerability from fkie_nvd
Published
2019-07-16 18:15
Modified
2024-11-21 04:18
Severity ?
Summary
A vulnerability was discovered in DNS resolver component of knot resolver through version 3.2.0 before 4.1.0 which allows remote attackers to bypass DNSSEC validation for non-existence answer. NXDOMAIN answer would get passed through to the client even if its DNSSEC validation failed, instead of sending a SERVFAIL packet. Caching is not affected by this particular bug but see CVE-2019-10191.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| nic | knot_resolver | * | |
| nic | knot_resolver | * | |
| fedoraproject | fedora | 29 | |
| fedoraproject | fedora | 30 |
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Vulnerability from fkie_nvd
Published
2021-03-30 02:15
Modified
2024-11-21 03:59
Severity ?
Summary
A flaw was found in knot-resolver before version 2.3.0. Malformed DNS messages may cause denial of service.
References
| ▼ | URL | Tags | |
|---|---|---|---|
| secalert@redhat.com | https://bugzilla.redhat.com/show_bug.cgi?id=1944328 | Issue Tracking, Third Party Advisory | |
| secalert@redhat.com | https://www.knot-resolver.cz/2018-04-23-knot-resolver-2.3.0.html | Release Notes, Vendor Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://bugzilla.redhat.com/show_bug.cgi?id=1944328 | Issue Tracking, Third Party Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://www.knot-resolver.cz/2018-04-23-knot-resolver-2.3.0.html | Release Notes, Vendor Advisory |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| nic | knot_resolver | * |
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Vulnerability from fkie_nvd
Published
2020-05-19 13:15
Modified
2024-11-21 05:00
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
Knot Resolver before 5.1.1 allows traffic amplification via a crafted DNS answer from an attacker-controlled server, aka an "NXNSAttack" issue. This is triggered by random subdomains in the NSDNAME in NS records.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| nic | knot_resolver | * |
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}
],
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"tags": [
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},
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"url": "https://www.knot-resolver.cz/2020-05-19-knot-resolver-5.1.1.html"
}
],
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"vulnStatus": "Modified",
"weaknesses": [
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"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary"
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]
}
Vulnerability from fkie_nvd
Published
2018-08-02 13:29
Modified
2024-11-21 03:42
Severity ?
Summary
Improper input validation bug in DNS resolver component of Knot Resolver before 2.4.1 allows remote attacker to poison cache.
References
| ▼ | URL | Tags | |
|---|---|---|---|
| secalert@redhat.com | https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10920 | Issue Tracking, Third Party Advisory | |
| secalert@redhat.com | https://www.knot-resolver.cz/2018-08-02-knot-resolver-2.4.1.html | Vendor Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10920 | Issue Tracking, Third Party Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://www.knot-resolver.cz/2018-08-02-knot-resolver-2.4.1.html | Vendor Advisory |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| nic | knot_resolver | * |
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Vulnerability from fkie_nvd
Published
2019-11-05 19:15
Modified
2024-11-21 01:57
Severity ?
Summary
Cache Poisoning issue exists in DNS Response Rate Limiting.
References
| ▼ | URL | Tags | |
|---|---|---|---|
| cve@mitre.org | https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2013-5661 | Issue Tracking, Third Party Advisory | |
| cve@mitre.org | https://bugzilla.suse.com/show_bug.cgi?id=CVE-2013-5661 | Issue Tracking, Third Party Advisory | |
| cve@mitre.org | https://security-tracker.debian.org/tracker/CVE-2013-5661 | Third Party Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2013-5661 | Issue Tracking, Third Party Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://bugzilla.suse.com/show_bug.cgi?id=CVE-2013-5661 | Issue Tracking, Third Party Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://security-tracker.debian.org/tracker/CVE-2013-5661 | Third Party Advisory |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| isc | bind | * | |
| nlnetlabs | nsd | 3.2.15 | |
| nic | knot_resolver | * | |
| redhat | enterprise_linux | 6.0 | |
| redhat | enterprise_linux | 7.0 |
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],
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}
]
}
Vulnerability from fkie_nvd
Published
2019-12-16 16:15
Modified
2024-11-21 04:34
Severity ?
Summary
knot-resolver before version 4.3.0 is vulnerable to denial of service through high CPU utilization. DNS replies with very many resource records might be processed very inefficiently, in extreme cases taking even several CPU seconds for each such uncached message. For example, a few thousand A records can be squashed into one DNS message (limit is 64kB).
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| nic | knot_resolver | * | |
| debian | debian_linux | 10.0 |
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},
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"lang": "es",
"value": "knot-resolver versiones anteriores a 4.3.0, es vulnerable a una denegaci\u00f3n de servicio por medio de una alta utilizaci\u00f3n de la CPU. Las respuestas de DNS con muchos registros de recursos podr\u00edan ser procesadas de manera muy ineficiente, en casos extremos, tomar incluso varios segundos de CPU para cada mensaje no almacenado en cach\u00e9. Por ejemplo, algunos miles de registros A pueden ser agrupados en un mensaje DNS (el l\u00edmite es 64kB)."
}
],
"id": "CVE-2019-19331",
"lastModified": "2024-11-21T04:34:35.420",
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Vulnerability from fkie_nvd
Published
2022-09-23 16:15
Modified
2024-11-21 07:21
Severity ?
Summary
Knot Resolver before 5.5.3 allows remote attackers to cause a denial of service (CPU consumption) because of algorithmic complexity. During an attack, an authoritative server must return large NS sets or address sets.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| nic | knot_resolver | * | |
| fedoraproject | fedora | 35 | |
| fedoraproject | fedora | 36 | |
| fedoraproject | fedora | 37 | |
| debian | debian_linux | 10.0 |
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},
{
"lang": "es",
"value": "Knot Resolver versiones anteriores a 5.5.3, permite a atacantes remotos causar una denegaci\u00f3n de servicio (consumo de CPU) debido a una complejidad del algoritmo. Durante un ataque, un servidor autoritativo debe devolver grandes conjuntos de NS o conjuntos de direcciones."
}
],
"id": "CVE-2022-40188",
"lastModified": "2024-11-21T07:21:01.603",
"metrics": {
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"references": [
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},
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},
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},
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},
{
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"tags": [
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"url": "https://gitlab.nic.cz/knot/knot-resolver/-/merge_requests/1343#note_262558"
},
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}
Vulnerability from fkie_nvd
Published
2018-01-22 18:29
Modified
2024-11-21 03:39
Severity ?
Summary
Improper input validation bugs in DNSSEC validators components in Knot Resolver (prior version 1.5.2) allow attacker in man-in-the-middle position to deny existence of some data in DNS via packet replay.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| nic | knot_resolver | * |
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},
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"value": "Errores de validaci\u00f3n indebida de entradas en los componentes de validadores DNSSEC en Knot Resolver (en versiones anteriores a la 1.5.2) permiten que un atacante Man-in-the-Middle (MitM) niegue la existencia de algunos datos en DNS mediante la reproducci\u00f3n de paquetes."
}
],
"id": "CVE-2018-1000002",
"lastModified": "2024-11-21T03:39:23.790",
"metrics": {
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"references": [
{
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"url": "https://www.knot-resolver.cz/2018-01-22-knot-resolver-1.5.2.html"
},
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],
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}
]
}
Vulnerability from fkie_nvd
Published
2019-07-16 18:15
Modified
2024-11-21 04:18
Severity ?
Summary
A vulnerability was discovered in DNS resolver of knot resolver before version 4.1.0 which allows remote attackers to downgrade DNSSEC-secure domains to DNSSEC-insecure state, opening possibility of domain hijack using attacks against insecure DNS protocol.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| nic | knot_resolver | * | |
| fedoraproject | fedora | 29 | |
| fedoraproject | fedora | 30 |
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"versionEndExcluding": "4.1.0",
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}
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},
{
"lang": "es",
"value": "Se detect\u00f3 una vulnerabilidad en la resoluci\u00f3n de DNS de knot resolver anteriores a la versi\u00f3n 4.1.0, que permite a los atacantes remotos degradar los dominios seguros de DNSSEC a un estado no seguro de DNSSEC, abriendo la posibilidad de un secuestro de dominio mediante el uso de ataques contra el protocolo DNS no seguro."
}
],
"id": "CVE-2019-10191",
"lastModified": "2024-11-21T04:18:37.237",
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{
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"url": "https://lists.debian.org/debian-lts-announce/2024/04/msg00017.html"
},
{
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},
{
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"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VZV5YZZ5766UIG2TFLFJL6EESQNAP5X5/"
},
{
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"tags": [
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"Vendor Advisory"
],
"url": "https://www.knot-resolver.cz/2019-07-10-knot-resolver-4.1.0.html"
},
{
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"tags": [
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},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://lists.debian.org/debian-lts-announce/2024/04/msg00017.html"
},
{
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},
{
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"tags": [
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"Vendor Advisory"
],
"url": "https://www.knot-resolver.cz/2019-07-10-knot-resolver-4.1.0.html"
}
],
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"vulnStatus": "Modified",
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"type": "Primary"
},
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],
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}
]
}
Vulnerability from fkie_nvd
Published
2023-02-21 02:15
Modified
2024-11-21 07:50
Severity ?
Summary
Knot Resolver before 5.6.0 enables attackers to consume its resources, launching amplification attacks and potentially causing a denial of service. Specifically, a single client query may lead to a hundred TCP connection attempts if a DNS server closes connections without providing a response.
References
| ▼ | URL | Tags | |
|---|---|---|---|
| cve@mitre.org | https://www.knot-resolver.cz/2023-01-26-knot-resolver-5.6.0.html | Release Notes, Vendor Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://www.knot-resolver.cz/2023-01-26-knot-resolver-5.6.0.html | Release Notes, Vendor Advisory |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| nic | knot_resolver | * |
{
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"matchCriteriaId": "7668D3CA-CB4A-46F7-94CC-9027E5E7B059",
"versionEndExcluding": "5.6.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
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}
],
"id": "CVE-2023-26249",
"lastModified": "2024-11-21T07:50:58.890",
"metrics": {
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"published": "2023-02-21T02:15:10.293",
"references": [
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"tags": [
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"url": "https://www.knot-resolver.cz/2023-01-26-knot-resolver-5.6.0.html"
},
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"url": "https://www.knot-resolver.cz/2023-01-26-knot-resolver-5.6.0.html"
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],
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"vulnStatus": "Modified",
"weaknesses": [
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"source": "nvd@nist.gov",
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]
}
Vulnerability from fkie_nvd
Published
2022-06-20 16:15
Modified
2024-11-21 07:07
Severity ?
Summary
Knot Resolver through 5.5.1 may allow DNS cache poisoning when there is an attempt to limit forwarding actions by filters.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| nic | knot_resolver | * |
{
"configurations": [
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"cpeMatch": [
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"criteria": "cpe:2.3:a:nic:knot_resolver:*:*:*:*:*:*:*:*",
"matchCriteriaId": "59E489F9-265F-4CBC-A9C3-CFB8F9B9A9D9",
"versionEndIncluding": "5.5.1",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
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"value": "Knot Resolver through 5.5.1 may allow DNS cache poisoning when there is an attempt to limit forwarding actions by filters."
},
{
"lang": "es",
"value": "Knot Resolver versiones hasta 5.5.1, puede permitir el envenenamiento de la cach\u00e9 DNS cuando intenta limitar las acciones de reenv\u00edo mediante filtros"
}
],
"id": "CVE-2022-32983",
"lastModified": "2024-11-21T07:07:21.230",
"metrics": {
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},
"published": "2022-06-20T16:15:07.990",
"references": [
{
"source": "cve@mitre.org",
"tags": [
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"Third Party Advisory"
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"url": "https://github.com/CZ-NIC/knot-resolver/commit/ccb9d9794db5eb757c33becf65cb1cf48ecfd968"
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{
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"url": "https://knot-resolver.readthedocs.io/en/stable/modules-policy.html#forwarding"
},
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},
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"tags": [
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"url": "https://knot-resolver.readthedocs.io/en/stable/modules-policy.html#forwarding"
}
],
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"vulnStatus": "Modified",
"weaknesses": [
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{
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"value": "CWE-290"
}
],
"source": "nvd@nist.gov",
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}
]
}
Vulnerability from fkie_nvd
Published
2024-02-14 16:15
Modified
2024-11-21 08:36
Severity ?
Summary
Certain DNSSEC aspects of the DNS protocol (in RFC 4033, 4034, 4035, 6840, and related RFCs) allow remote attackers to cause a denial of service (CPU consumption) via one or more DNSSEC responses, aka the "KeyTrap" issue. One of the concerns is that, when there is a zone with many DNSKEY and RRSIG records, the protocol specification implies that an algorithm must evaluate all combinations of DNSKEY and RRSIG records.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| redhat | enterprise_linux | 6.0 | |
| redhat | enterprise_linux | 7.0 | |
| redhat | enterprise_linux | 8.0 | |
| redhat | enterprise_linux | 9.0 | |
| microsoft | windows_server_2008 | r2 | |
| microsoft | windows_server_2012 | - | |
| microsoft | windows_server_2012 | r2 | |
| microsoft | windows_server_2016 | - | |
| microsoft | windows_server_2019 | - | |
| microsoft | windows_server_2022 | - | |
| microsoft | windows_server_2022_23h2 | - | |
| fedoraproject | fedora | 39 | |
| thekelleys | dnsmasq | * | |
| nic | knot_resolver | * | |
| powerdns | recursor | * | |
| powerdns | recursor | * | |
| powerdns | recursor | * | |
| isc | bind | * | |
| isc | bind | * | |
| isc | bind | * | |
| nlnetlabs | unbound | * |
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Vulnerability from fkie_nvd
Published
2021-08-25 01:15
Modified
2024-11-21 06:23
Severity ?
Summary
Knot Resolver before 5.3.2 is prone to an assertion failure, triggerable by a remote attacker in an edge case (NSEC3 with too many iterations used for a positive wildcard proof).
References
| ▼ | URL | Tags | |
|---|---|---|---|
| cve@mitre.org | https://gitlab.nic.cz/knot/knot-resolver/-/merge_requests/1169 | Patch, Third Party Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://gitlab.nic.cz/knot/knot-resolver/-/merge_requests/1169 | Patch, Third Party Advisory |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| nic | knot_resolver | * |
{
"configurations": [
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"nodes": [
{
"cpeMatch": [
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"criteria": "cpe:2.3:a:nic:knot_resolver:*:*:*:*:*:*:*:*",
"matchCriteriaId": "D0332FE7-D275-4C68-BCFC-CF71A159E210",
"versionEndExcluding": "5.3.2",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
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"lang": "en",
"value": "Knot Resolver before 5.3.2 is prone to an assertion failure, triggerable by a remote attacker in an edge case (NSEC3 with too many iterations used for a positive wildcard proof)."
},
{
"lang": "es",
"value": "Knot Resolver versiones anteriores a 5.3.2, es propenso a un fallo de aserci\u00f3n, desencadenado por un atacante remoto en un caso l\u00edmite (NSEC3 con demasiadas iteraciones usadas para una prueba de comod\u00edn positiva)."
}
],
"id": "CVE-2021-40083",
"lastModified": "2024-11-21T06:23:30.803",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 5.0,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
"version": "2.0"
},
"exploitabilityScore": 10.0,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
],
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"attackVector": "NETWORK",
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"baseScore": 7.5,
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"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 3.6,
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"type": "Primary"
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},
"published": "2021-08-25T01:15:11.087",
"references": [
{
"source": "cve@mitre.org",
"tags": [
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"Third Party Advisory"
],
"url": "https://gitlab.nic.cz/knot/knot-resolver/-/merge_requests/1169"
},
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"sourceIdentifier": "cve@mitre.org",
"vulnStatus": "Modified",
"weaknesses": [
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"description": [
{
"lang": "en",
"value": "CWE-617"
}
],
"source": "nvd@nist.gov",
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}
]
}
Vulnerability from fkie_nvd
Published
2023-10-22 23:15
Modified
2024-11-21 08:28
Severity ?
Summary
Knot Resolver before 5.7.0 performs many TCP reconnections upon receiving certain nonsensical responses from servers.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| nic | knot_resolver | * |
{
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:nic:knot_resolver:*:*:*:*:*:*:*:*",
"matchCriteriaId": "A9B5BE8A-548D-43F3-A59F-9173FBA444D6",
"versionEndExcluding": "5.7.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Knot Resolver before 5.7.0 performs many TCP reconnections upon receiving certain nonsensical responses from servers."
},
{
"lang": "es",
"value": "Knot Resolver anterior a 5.7.0 realiza muchas reconexiones TCP al recibir ciertas respuestas sin sentido de los servidores."
}
],
"id": "CVE-2023-46317",
"lastModified": "2024-11-21T08:28:17.683",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2023-10-22T23:15:08.020",
"references": [
{
"source": "cve@mitre.org",
"tags": [
"Patch",
"Release Notes"
],
"url": "https://gitlab.nic.cz/knot/knot-resolver/-/merge_requests/1448"
},
{
"source": "cve@mitre.org",
"tags": [
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],
"url": "https://www.knot-resolver.cz/2023-08-22-knot-resolver-5.7.0.html"
},
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},
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"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Release Notes"
],
"url": "https://www.knot-resolver.cz/2023-08-22-knot-resolver-5.7.0.html"
}
],
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"vulnStatus": "Modified",
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"description": [
{
"lang": "en",
"value": "NVD-CWE-noinfo"
}
],
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"type": "Primary"
}
]
}