CVE-2020-17441

An issue was discovered in picoTCP 1.7.0. The code for processing the IPv6 headers does not validate whether the IPv6 payload length field is equal to the actual size of the payload, which leads to an Out-of-Bounds read during the ICMPv6 checksum calculation, resulting in either Denial-of-Service or Information Disclosure. This affects pico_ipv6_extension_headers and pico_checksum_adder (in pico_ipv6.c and pico_frame.c).

CVSS v3 9.1 CRITICAL
CVSS v2.0 6.4 MEDIUM

9.1^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

6.4^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 10.0 / Impact : 4.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01	Third Party Advisory US Government Resource
https://www.kb.cert.org/vuls/id/815128	Third Party Advisory US Government Resource

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:altran:picotcp::::::::
	cpe:2.3:a:microchip:mplab_harmony::::::::

History

No history.

Information

Published : 2020-12-11 23:15

Updated : 2024-02-04 21:23

NVD link : CVE-2020-17441

Mitre link : CVE-2020-17441

CVE.ORG link : CVE-2020-17441

JSON object : View

Products Affected

microchip

mplab_harmony

altran

picotcp

CWE

CWE-125

Out-of-bounds Read

{"id": "CVE-2020-17441", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 6.4, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:P", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 4.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.1, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.2, "exploitabilityScore": 3.9}]}, "published": "2020-12-11T23:15:13.213", "references": [{"url": "https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01", "tags": ["Third Party Advisory", "US Government Resource"], "source": "cve@mitre.org"}, {"url": "https://www.kb.cert.org/vuls/id/815128", "tags": ["Third Party Advisory", "US Government Resource"], "source": "cve@mitre.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-125"}]}], "descriptions": [{"lang": "en", "value": "An issue was discovered in picoTCP 1.7.0. The code for processing the IPv6 headers does not validate whether the IPv6 payload length field is equal to the actual size of the payload, which leads to an Out-of-Bounds read during the ICMPv6 checksum calculation, resulting in either Denial-of-Service or Information Disclosure. This affects pico_ipv6_extension_headers and pico_checksum_adder (in pico_ipv6.c and pico_frame.c)."}, {"lang": "es", "value": "Se detect\u00f3 un problema en picoTCP versi\u00f3n 1.7.0. El c\u00f3digo para procesar los encabezados de IPv6 no comprueba si el campo de longitud de la carga \u00fatil de IPv6 es igual al tama\u00f1o real de la carga \u00fatil, lo que conlleva a una Lectura Fuera de L\u00edmites durante el c\u00e1lculo de la suma de comprobaci\u00f3n ICMPv6, resultando en una Denegaci\u00f3n de Servicio o Divulgaci\u00f3n de informaci\u00f3n. Esto afecta a las funciones pico_ipv6_extension_headers y pico_checksum_adder (en el archivo pico_ipv6.cy pico_frame.c)"}], "lastModified": "2020-12-14T20:12:45.087", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:altran:picotcp:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BEB4123E-EE54-4991-9011-42FD1FC83662", "versionEndIncluding": "1.7.0"}, {"criteria": "cpe:2.3:a:microchip:mplab_harmony:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "AD575738-C219-4864-B830-CA4A808220EE", "versionEndExcluding": "3.7.0", "versionStartIncluding": "3.0.0"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}