DOS: Incorrect handling of the initial HCI ACL_MTU handshake packet leads to crash of bluetooth host layer (zephyrproject-rtos zephyr)

CVE-2021-3329

CRITICAL 9.6

En bref

Source: NVD
EPSS: EPSS 0.62 % · centile 50 (2026-11-01)
État: PUBLISHED
Publiée: 2023-02-26 00:00 UTC
Mise à jour: 2025-03-11 15:25 UTC
Attribuée par: zephyr
Statut NVD: Modified

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Description

Lack of proper validation in HCI Host stack initialization can cause a crash of the bluetooth stack

Faiblesses (CWE)

CWE-703 — Improper Check or Handling of Exceptional Conditions
CWE-665 — Initialisation incorrecte

Références

https://zephyrprojectsec.atlassian.net/browse/ZEPSEC-117

Scores

Version	Score	Vecteur	Évalué par
CVSS 3.1	CRITICAL 9.6	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:H	zephyr
CVSS 3.1	CRITICAL 9.6	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:H	NVD · vulnerabilities@zephyrproject.org (Secondary)
CVSS 3.1	MEDIUM 6.5	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	NVD · nvd@nist.gov (Primary)

Références européennes

ENISA EUVD · EUVD-2021-26660
GCVE · GCVE-0-2021-3329

Configurations affectées (CPE NVD)

cpe:2.3:o:zephyrproject:zephyr:2.4.0:-:*:*:*:*:*:*
cpe:2.3:o:zephyrproject:zephyr:2.4.0:rc1:*:*:*:*:*:*
cpe:2.3:o:zephyrproject:zephyr:2.4.0:rc2:*:*:*:*:*:*
cpe:2.3:o:zephyrproject:zephyr:2.4.0:rc3:*:*:*:*:*:*

Produits affectés

Produit	Versions
zephyrproject-rtos · zephyr	affected unspecified ≤ v2.4

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