Insufficient publish message length validation in MQTT (zephyrproject-rtos zephyr)

CVE-2020-10071

CRITICAL 9.0

En bref

Source: NVD
EPSS: EPSS 3.40 % · centile 89 (2026-11-01)
État: PUBLISHED
Publiée: 2020-06-05 17:37 UTC
Mise à jour: 2024-09-17 04:19 UTC
Attribuée par: zephyr
Statut NVD: Modified

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Description

The Zephyr MQTT parsing code performs insufficient checking of the length field on publish messages, allowing a buffer overflow and potentially remote code execution. NCC-ZEP-031 This issue affects: zephyrproject-rtos zephyr version 2.2.0 and later versions.

Faiblesses (CWE)

CWE-120 — Copie de tampon sans vérification de taille (débordement classique)
CWE-129 — Validation incorrecte d'un indice de tableau

Références

Scores

Version	Score	Vecteur	Évalué par
CVSS 3.1	CRITICAL 9.0	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H	zephyr
CVSS 3.1	CRITICAL 9.0	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H	NVD · vulnerabilities@zephyrproject.org (Secondary)
CVSS 3.1	CRITICAL 9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	NVD · nvd@nist.gov (Primary)
CVSS 2.0	HIGH 7.5	AV:N/AC:L/Au:N/C:P/I:P/A:P	NVD · nvd@nist.gov (Primary)

Références européennes

ENISA EUVD · EUVD-2020-2536
GCVE · GCVE-0-2020-10071

Configurations affectées (CPE NVD)

cpe:2.3:o:zephyrproject:zephyr:*:*:*:*:*:*:*:* ≤ 2.2.0

Produits affectés

Produit	Versions
zephyrproject-rtos · zephyr	affected 2.2.0 < unspecified

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD

💣 Insufficient publish message length validation in MQTT (zephyrproject-rtos zephyr)