CVE-2021-31611 (GCVE-0-2021-31611)
Vulnerability from cvelistv5 – Published: 2021-09-07 06:03 – Updated: 2024-08-03 23:03
VLAI
EPSS
VEX
Summary
The Bluetooth Classic implementation on Zhuhai Jieli AC690X and AC692X devices does not properly handle an out-of-order LMP Setup procedure that is followed by a malformed LMP packet, allowing attackers in radio range to deadlock a device via a crafted LMP packet. The user needs to manually reboot the device to restore communication.
Severity
5.7 (Medium)
CWE
- n/a
Assigner
References
4 references
| URL | Tags |
|---|---|
| http://www.zh-jieli.com/product/68-cn.html | x_refsource_MISC |
| https://launchstudio.bluetooth.com/ListingDetails/58628 | x_refsource_MISC |
| https://launchstudio.bluetooth.com/ListingDetails/19746 | x_refsource_MISC |
| https://dl.packetstormsecurity.net/papers/general… | x_refsource_MISC |
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-03T23:03:33.593Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "http://www.zh-jieli.com/product/68-cn.html"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://launchstudio.bluetooth.com/ListingDetails/58628"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://launchstudio.bluetooth.com/ListingDetails/19746"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://dl.packetstormsecurity.net/papers/general/braktooth.pdf"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "The Bluetooth Classic implementation on Zhuhai Jieli AC690X and AC692X devices does not properly handle an out-of-order LMP Setup procedure that is followed by a malformed LMP packet, allowing attackers in radio range to deadlock a device via a crafted LMP packet. The user needs to manually reboot the device to restore communication."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "n/a",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2021-09-07T06:03:47.000Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"tags": [
"x_refsource_MISC"
],
"url": "http://www.zh-jieli.com/product/68-cn.html"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://launchstudio.bluetooth.com/ListingDetails/58628"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://launchstudio.bluetooth.com/ListingDetails/19746"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://dl.packetstormsecurity.net/papers/general/braktooth.pdf"
}
],
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "cve@mitre.org",
"ID": "CVE-2021-31611",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "n/a",
"version": {
"version_data": [
{
"version_value": "n/a"
}
]
}
}
]
},
"vendor_name": "n/a"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "The Bluetooth Classic implementation on Zhuhai Jieli AC690X and AC692X devices does not properly handle an out-of-order LMP Setup procedure that is followed by a malformed LMP packet, allowing attackers in radio range to deadlock a device via a crafted LMP packet. The user needs to manually reboot the device to restore communication."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "n/a"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "http://www.zh-jieli.com/product/68-cn.html",
"refsource": "MISC",
"url": "http://www.zh-jieli.com/product/68-cn.html"
},
{
"name": "https://launchstudio.bluetooth.com/ListingDetails/58628",
"refsource": "MISC",
"url": "https://launchstudio.bluetooth.com/ListingDetails/58628"
},
{
"name": "https://launchstudio.bluetooth.com/ListingDetails/19746",
"refsource": "MISC",
"url": "https://launchstudio.bluetooth.com/ListingDetails/19746"
},
{
"name": "https://dl.packetstormsecurity.net/papers/general/braktooth.pdf",
"refsource": "MISC",
"url": "https://dl.packetstormsecurity.net/papers/general/braktooth.pdf"
}
]
}
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2021-31611",
"datePublished": "2021-09-07T06:03:47.000Z",
"dateReserved": "2021-04-23T00:00:00.000Z",
"dateUpdated": "2024-08-03T23:03:33.593Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2021-31611",
"date": "2026-09-17",
"epss": "0.00366",
"percentile": "0.30267"
},
"fkie_nvd": {
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:zh-jieli:ac6901_firmware:-:*:*:*:*:*:*:*",
"matchCriteriaId": "A68BB39A-4A9C-4B57-9D29-12601FCFC763",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:zh-jieli:ac6901:-:*:*:*:*:*:*:*",
"matchCriteriaId": "06EBB244-F958-45C8-84B5-DFB3BA3E9449",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:zh-jieli:ac6925_firmware:-:*:*:*:*:*:*:*",
"matchCriteriaId": "F327D670-BA99-4E1B-8653-0D611BAC2DB6",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:zh-jieli:ac6925:-:*:*:*:*:*:*:*",
"matchCriteriaId": "6B4E66F9-29B9-4A90-96DE-3E4FE0A5F598",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:zh-jieli:ac6926_firmware:-:*:*:*:*:*:*:*",
"matchCriteriaId": "7AB77D0C-695A-4092-8660-D3A54BFD4059",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:zh-jieli:ac6926:-:*:*:*:*:*:*:*",
"matchCriteriaId": "754D8DF0-4090-4E6A-9433-6727A941A29F",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:zh-jieli:ac6928_firmware:-:*:*:*:*:*:*:*",
"matchCriteriaId": "F773079C-E4F2-4ABC-9AFD-3FA806B01055",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:zh-jieli:ac6928:-:*:*:*:*:*:*:*",
"matchCriteriaId": "1A6CC1D2-2654-4E88-B564-A51B3BBB6D1B",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:zh-jieli:ac6921_firmware:-:*:*:*:*:*:*:*",
"matchCriteriaId": "E80A0EAC-347A-4E0A-8C7E-2FD527DAC8CE",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:zh-jieli:ac6921:-:*:*:*:*:*:*:*",
"matchCriteriaId": "0E825175-6F3D-4835-89C4-70BDCFA7564F",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
}
],
"descriptions": [
{
"lang": "en",
"value": "The Bluetooth Classic implementation on Zhuhai Jieli AC690X and AC692X devices does not properly handle an out-of-order LMP Setup procedure that is followed by a malformed LMP packet, allowing attackers in radio range to deadlock a device via a crafted LMP packet. The user needs to manually reboot the device to restore communication."
},
{
"lang": "es",
"value": "La implementaci\u00f3n de Bluetooth Classic en los dispositivos Zhuhai Jieli AC690X y AC692X, no maneja apropiadamente un procedimiento de configuraci\u00f3n LMP fuera de orden que es seguido por un paquete LMP malformado, que permite a atacantes en el rango de radio bloquear un dispositivo por medio de un paquete LMP dise\u00f1ado. El usuario debe reiniciar manualmente el dispositivo para restablecer la comunicaci\u00f3n"
}
],
"id": "CVE-2021-31611",
"lastModified": "2024-11-21T06:06:01.473",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "LOW",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "ADJACENT_NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 3.3,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"vectorString": "AV:A/AC:L/Au:N/C:N/I:N/A:P",
"version": "2.0"
},
"exploitabilityScore": 6.5,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 5.7,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 2.1,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2021-09-07T07:15:07.043",
"references": [
{
"source": "cve@mitre.org",
"tags": [
"Vendor Advisory"
],
"url": "http://www.zh-jieli.com/product/68-cn.html"
},
{
"source": "cve@mitre.org",
"tags": [
"Broken Link"
],
"url": "https://dl.packetstormsecurity.net/papers/general/braktooth.pdf"
},
{
"source": "cve@mitre.org",
"tags": [
"Third Party Advisory"
],
"url": "https://launchstudio.bluetooth.com/ListingDetails/19746"
},
{
"source": "cve@mitre.org",
"tags": [
"Third Party Advisory"
],
"url": "https://launchstudio.bluetooth.com/ListingDetails/58628"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Vendor Advisory"
],
"url": "http://www.zh-jieli.com/product/68-cn.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Broken Link"
],
"url": "https://dl.packetstormsecurity.net/papers/general/braktooth.pdf"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://launchstudio.bluetooth.com/ListingDetails/19746"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://launchstudio.bluetooth.com/ListingDetails/58628"
}
],
"sourceIdentifier": "cve@mitre.org",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-667"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"nvd": {
"cve": {
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:zh-jieli:ac6901_firmware:-:*:*:*:*:*:*:*",
"matchCriteriaId": "A68BB39A-4A9C-4B57-9D29-12601FCFC763",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:zh-jieli:ac6901:-:*:*:*:*:*:*:*",
"matchCriteriaId": "06EBB244-F958-45C8-84B5-DFB3BA3E9449",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:zh-jieli:ac6925_firmware:-:*:*:*:*:*:*:*",
"matchCriteriaId": "F327D670-BA99-4E1B-8653-0D611BAC2DB6",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:zh-jieli:ac6925:-:*:*:*:*:*:*:*",
"matchCriteriaId": "6B4E66F9-29B9-4A90-96DE-3E4FE0A5F598",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:zh-jieli:ac6926_firmware:-:*:*:*:*:*:*:*",
"matchCriteriaId": "7AB77D0C-695A-4092-8660-D3A54BFD4059",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:zh-jieli:ac6926:-:*:*:*:*:*:*:*",
"matchCriteriaId": "754D8DF0-4090-4E6A-9433-6727A941A29F",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:zh-jieli:ac6928_firmware:-:*:*:*:*:*:*:*",
"matchCriteriaId": "F773079C-E4F2-4ABC-9AFD-3FA806B01055",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:zh-jieli:ac6928:-:*:*:*:*:*:*:*",
"matchCriteriaId": "1A6CC1D2-2654-4E88-B564-A51B3BBB6D1B",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:zh-jieli:ac6921_firmware:-:*:*:*:*:*:*:*",
"matchCriteriaId": "E80A0EAC-347A-4E0A-8C7E-2FD527DAC8CE",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:zh-jieli:ac6921:-:*:*:*:*:*:*:*",
"matchCriteriaId": "0E825175-6F3D-4835-89C4-70BDCFA7564F",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "The Bluetooth Classic implementation on Zhuhai Jieli AC690X and AC692X devices does not properly handle an out-of-order LMP Setup procedure that is followed by a malformed LMP packet, allowing attackers in radio range to deadlock a device via a crafted LMP packet. The user needs to manually reboot the device to restore communication."
},
{
"lang": "es",
"value": "La implementaci\u00f3n de Bluetooth Classic en los dispositivos Zhuhai Jieli AC690X y AC692X, no maneja apropiadamente un procedimiento de configuraci\u00f3n LMP fuera de orden que es seguido por un paquete LMP malformado, que permite a atacantes en el rango de radio bloquear un dispositivo por medio de un paquete LMP dise\u00f1ado. El usuario debe reiniciar manualmente el dispositivo para restablecer la comunicaci\u00f3n"
}
],
"id": "CVE-2021-31611",
"lastModified": "2024-11-21T06:06:01.473",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "LOW",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "ADJACENT_NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 3.3,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"vectorString": "AV:A/AC:L/Au:N/C:N/I:N/A:P",
"version": "2.0"
},
"exploitabilityScore": 6.5,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 5.7,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 2.1,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2021-09-07T07:15:07.043",
"references": [
{
"source": "cve@mitre.org",
"tags": [
"Vendor Advisory"
],
"url": "http://www.zh-jieli.com/product/68-cn.html"
},
{
"source": "cve@mitre.org",
"tags": [
"Broken Link"
],
"url": "https://dl.packetstormsecurity.net/papers/general/braktooth.pdf"
},
{
"source": "cve@mitre.org",
"tags": [
"Third Party Advisory"
],
"url": "https://launchstudio.bluetooth.com/ListingDetails/19746"
},
{
"source": "cve@mitre.org",
"tags": [
"Third Party Advisory"
],
"url": "https://launchstudio.bluetooth.com/ListingDetails/58628"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Vendor Advisory"
],
"url": "http://www.zh-jieli.com/product/68-cn.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Broken Link"
],
"url": "https://dl.packetstormsecurity.net/papers/general/braktooth.pdf"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://launchstudio.bluetooth.com/ListingDetails/19746"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://launchstudio.bluetooth.com/ListingDetails/58628"
}
],
"sourceIdentifier": "cve@mitre.org",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-667"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"current_release_date": "2026-03-27T14:07:04+00:00",
"cve": "CVE-2021-31611",
"id": "CVE-2021-31611",
"initial_release_date": "2021-01-01T00:00:00+00:00",
"product_status:known_not_affected": "1",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "CVE-2021-31611",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-31611.json",
"version": "3"
}
}
}
Loading…
Loading…
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.
Loading…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
Loading…