CVE-2022-2347

There exists an unchecked length field in UBoot. The U-Boot DFU implementation does not bound the length field in USB DFU download setup packets, and it does not verify that the transfer direction corresponds to the specified command. Consequently, if a physical attacker crafts a USB DFU download setup packet with a `wLength` greater than 4096 bytes, they can write beyond the heap-allocated request buffer.

CVSS v3 7.1 HIGH

7.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 0.5 / Impact : 6.0

Attack Vector PHYSICAL

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

References

Link	Resource
https://seclists.org/oss-sec/2022/q3/41	Exploit Mailing List Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:denx:u-boot:*:*:*:*:*:*:*:*

History

29 Sep 2022, 13:51

Type	Values Removed	Values Added
References	~~(MISC) https://seclists.org/oss-sec/2022/q3/41 -~~	(MISC) https://seclists.org/oss-sec/2022/q3/41 - Exploit, Mailing List, Third Party Advisory
CPE		cpe:2.3:a:denx:u-boot::::::::
CWE		CWE-787
First Time		Denx Denx u-boot
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.1

23 Sep 2022, 13:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2022-09-23 13:15

Updated : 2023-12-10 14:35

NVD link : CVE-2022-2347

Mitre link : CVE-2022-2347

CVE.ORG link : CVE-2022-2347

JSON object : View

Products Affected

denx

u-boot

CWE

CWE-787

Out-of-bounds Write

CWE-122

Heap-based Buffer Overflow

{"id": "CVE-2022-2347", "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 7.1, "attackVector": "PHYSICAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 6.0, "exploitabilityScore": 0.5}, {"type": "Secondary", "source": "cve-coordination@google.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 7.7, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 6.0, "exploitabilityScore": 1.0}]}, "published": "2022-09-23T13:15:10.133", "references": [{"url": "https://seclists.org/oss-sec/2022/q3/41", "tags": ["Exploit", "Mailing List", "Third Party Advisory"], "source": "cve-coordination@google.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-787"}]}, {"type": "Secondary", "source": "cve-coordination@google.com", "description": [{"lang": "en", "value": "CWE-122"}]}], "descriptions": [{"lang": "en", "value": "There exists an unchecked length field in UBoot. The U-Boot DFU implementation does not bound the length field in USB DFU download setup packets, and it does not verify that the transfer direction corresponds to the specified command. Consequently, if a physical attacker crafts a USB DFU download setup packet with a `wLength` greater than 4096 bytes, they can write beyond the heap-allocated request buffer."}, {"lang": "es", "value": "Se presenta un campo de longitud no comprobado en UBoot. La implementaci\u00f3n de U-Boot DFU no vincula el campo de longitud en los paquetes de configuraci\u00f3n de descarga de USB DFU, y no verifica que la direcci\u00f3n de transferencia sea correspondida con el comando especificado. En consecuencia, si un atacante f\u00edsico dise\u00f1a un paquete de configuraci\u00f3n de descarga USB DFU con una \"wLength\" superior a 4096 bytes, puede escribir m\u00e1s all\u00e1 del b\u00fafer de petici\u00f3n asignado a la pila."}], "lastModified": "2022-09-29T13:51:06.167", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:denx:u-boot:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DF635F28-C38A-4034-A23B-A7EF640E6EB0", "versionEndIncluding": "2022.07", "versionStartIncluding": "2012.10"}], "operator": "OR"}]}], "sourceIdentifier": "cve-coordination@google.com"}