fkie_cve-2020-24336
Vulnerability from fkie_nvd
Published
2020-12-11 23:15
Modified
2024-11-21 05:14
Severity ?
Summary
An issue was discovered in Contiki through 3.0 and Contiki-NG through 4.5. The code for parsing Type A domain name answers in ip64-dns64.c doesn't verify whether the address in the answer's length is sane. Therefore, when copying an address of an arbitrary length, a buffer overflow can occur. This bug can be exploited whenever NAT64 is enabled.
References
| ▼ | URL | Tags | |
|---|---|---|---|
| cve@mitre.org | https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01 | Third Party Advisory, US Government Resource | |
| cve@mitre.org | https://www.kb.cert.org/vuls/id/815128 | Third Party Advisory, US Government Resource | |
| af854a3a-2127-422b-91ae-364da2661108 | https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01 | Third Party Advisory, US Government Resource | |
| af854a3a-2127-422b-91ae-364da2661108 | https://www.kb.cert.org/vuls/id/815128 | Third Party Advisory, US Government Resource |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| contiki-ng | contiki-ng | * | |
| contiki-os | contiki | * |
{
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:contiki-ng:contiki-ng:*:*:*:*:*:*:*:*",
"matchCriteriaId": "797897DD-5B41-4E84-98BE-1766F09114C2",
"versionEndIncluding": "4.5",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:contiki-os:contiki:*:*:*:*:*:*:*:*",
"matchCriteriaId": "EBD2BE71-F851-4136-816D-EF61154FD2C4",
"versionEndIncluding": "3.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "An issue was discovered in Contiki through 3.0 and Contiki-NG through 4.5. The code for parsing Type A domain name answers in ip64-dns64.c doesn\u0027t verify whether the address in the answer\u0027s length is sane. Therefore, when copying an address of an arbitrary length, a buffer overflow can occur. This bug can be exploited whenever NAT64 is enabled."
},
{
"lang": "es",
"value": "Se detect\u00f3 un problema en Contiki versiones hasta 3.0 y Contiki-NG versiones hasta 4.5.\u0026#xa0;El c\u00f3digo para analizar las respuestas de nombre de dominio Tipo A en el archivo ip64-dns64.c no verifica si la direcci\u00f3n en la longitud de la respuesta es sana.\u0026#xa0;Por lo tanto, cuando se copia una direcci\u00f3n de una longitud arbitraria, puede producirse un desbordamiento de b\u00fafer.\u0026#xa0;Este error puede ser explotado siempre que NAT64 est\u00e9 habilitado"
}
],
"id": "CVE-2020-24336",
"lastModified": "2024-11-21T05:14:36.863",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "HIGH",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 7.5,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
"version": "2.0"
},
"exploitabilityScore": 10.0,
"impactScore": 6.4,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 5.9,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2020-12-11T23:15:13.870",
"references": [
{
"source": "cve@mitre.org",
"tags": [
"Third Party Advisory",
"US Government Resource"
],
"url": "https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01"
},
{
"source": "cve@mitre.org",
"tags": [
"Third Party Advisory",
"US Government Resource"
],
"url": "https://www.kb.cert.org/vuls/id/815128"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory",
"US Government Resource"
],
"url": "https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory",
"US Government Resource"
],
"url": "https://www.kb.cert.org/vuls/id/815128"
}
],
"sourceIdentifier": "cve@mitre.org",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-120"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
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- Confirmed: The vulnerability is confirmed from an analyst perspective.
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- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.