CVE-2020-12140

A buffer overflow in os/net/mac/ble/ble-l2cap.c in the BLE stack in Contiki-NG 4.4 and earlier allows an attacker to execute arbitrary code via malicious L2CAP frames.

CVSS v3 8.8 HIGH
CVSS v2.0 8.3 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

8.3^/10

CVSS v2.0 : HIGH

Vector : AV:A/AC:L/Au:N/C:C/I:C/A:C

Exploitability : 6.5 / Impact : 10.0

Access Vector ADJACENT_NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://github.com/contiki-ng/contiki-ng/pull/1662	Patch Third Party Advisory
https://twitter.com/ScepticCtf	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:o:contiki-ng:contiki-ng:*:*:*:*:*:*:*:*

History

09 Dec 2021, 16:50

Type	Values Removed	Values Added
CWE		CWE-120
References	~~(MISC) https://twitter.com/ScepticCtf -~~	(MISC) https://twitter.com/ScepticCtf - Third Party Advisory
References	~~(MISC) https://github.com/contiki-ng/contiki-ng/pull/1662 -~~	(MISC) https://github.com/contiki-ng/contiki-ng/pull/1662 - Patch, Third Party Advisory
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : 8.3 v3 : 8.8
CPE		cpe:2.3:o:contiki-ng:contiki-ng::::::::

07 Dec 2021, 19:45

Type	Values Removed	Values Added
New CVE

Information

Published : 2021-12-07 19:15

Updated : 2023-12-10 14:09

NVD link : CVE-2020-12140

Mitre link : CVE-2020-12140

CVE.ORG link : CVE-2020-12140

JSON object : View

Products Affected

contiki-ng

contiki-ng

CWE

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

{"id": "CVE-2020-12140", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 8.3, "accessVector": "ADJACENT_NETWORK", "vectorString": "AV:A/AC:L/Au:N/C:C/I:C/A:C", "authentication": "NONE", "integrityImpact": "COMPLETE", "accessComplexity": "LOW", "availabilityImpact": "COMPLETE", "confidentialityImpact": "COMPLETE"}, "acInsufInfo": false, "impactScore": 10.0, "baseSeverity": "HIGH", "obtainAllPrivilege": false, "exploitabilityScore": 6.5, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "ADJACENT_NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.8}]}, "published": "2021-12-07T19:15:07.370", "references": [{"url": "https://github.com/contiki-ng/contiki-ng/pull/1662", "tags": ["Patch", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://twitter.com/ScepticCtf", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-120"}]}], "descriptions": [{"lang": "en", "value": "A buffer overflow in os/net/mac/ble/ble-l2cap.c in the BLE stack in Contiki-NG 4.4 and earlier allows an attacker to execute arbitrary code via malicious L2CAP frames."}, {"lang": "es", "value": "Un desbordamiento de b\u00fafer en el archivo os/net/mac/ble/ble-l2cap.c en la pila BLE en Contiki-NG versiones 4.4 y anteriores, permite a un atacante ejecutar c\u00f3digo arbitrario por medio de tramas L2CAP maliciosas"}], "lastModified": "2021-12-09T16:50:06.687", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:contiki-ng:contiki-ng:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E73A7902-20FD-4D8C-8835-032A777165DB", "versionEndIncluding": "4.4"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}