fkie_cve-2020-35776
Vulnerability from fkie_nvd
Published
2021-02-18 20:15
Modified
2024-11-21 05:28
Severity ?
Summary
A buffer overflow in res_pjsip_diversion.c in Sangoma Asterisk versions 13.38.1, 16.15.1, 17.9.1, and 18.1.1 allows remote attacker to crash Asterisk by deliberately misusing SIP 181 responses.
References
Impacted products
{
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*",
"matchCriteriaId": "1E99E69F-264A-4AD2-B507-02486117FA1C",
"versionEndIncluding": "13.38.1",
"versionStartIncluding": "13.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*",
"matchCriteriaId": "A0F7194B-B22A-4A28-98D2-5565442D8EF9",
"versionEndIncluding": "16.15.1",
"versionStartIncluding": "16.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*",
"matchCriteriaId": "1B6714BD-DBC8-4F8D-A7C9-C8A93FE7A73C",
"versionEndIncluding": "17.9.1",
"versionStartIncluding": "17.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*",
"matchCriteriaId": "A8DFA54E-1555-4438-AAD3-DE033F33147F",
"versionEndIncluding": "18.1.1",
"versionStartIncluding": "18.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A buffer overflow in res_pjsip_diversion.c in Sangoma Asterisk versions 13.38.1, 16.15.1, 17.9.1, and 18.1.1 allows remote attacker to crash Asterisk by deliberately misusing SIP 181 responses."
},
{
"lang": "es",
"value": "Un desbordamiento del b\u00fafer en el archivo res_pjsip_diversion.c en Sangoma Asterisk versiones 13.38.1, 16.15.1, 17.9.1 y 18.1.1, permite a un atacante remoto bloquear Asterisk al hacer un uso inapropiado deliberadamente de las respuestas SIP 181"
}
],
"id": "CVE-2020-35776",
"lastModified": "2024-11-21T05:28:03.670",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "MEDIUM",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 4.3,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P",
"version": "2.0"
},
"exploitabilityScore": 8.6,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
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}
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"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"version": "3.1"
},
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"impactScore": 3.6,
"source": "nvd@nist.gov",
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},
"published": "2021-02-18T20:15:12.447",
"references": [
{
"source": "cve@mitre.org",
"tags": [
"Patch",
"Third Party Advisory"
],
"url": "http://packetstormsecurity.com/files/161470/Asterisk-Project-Security-Advisory-AST-2021-001.html"
},
{
"source": "cve@mitre.org",
"tags": [
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"url": "http://seclists.org/fulldisclosure/2021/Feb/57"
},
{
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"tags": [
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"url": "https://downloads.asterisk.org/pub/security/AST-2021-001.html"
},
{
"source": "cve@mitre.org",
"tags": [
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"url": "https://issues.asterisk.org/"
},
{
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"url": "https://issues.asterisk.org/jira/browse/ASTERISK-29227"
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],
"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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- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.