CVE-2019-9503

Broadcom brcmfmac driver is vulnerable to a frame validation bypass

En bref

Sévérité
HIGH 7.9
EPSS
EPSS 3.29 % · centile 88 (2026-10-27)
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
certcc
Statut NVD
Modified

Description

The Broadcom brcmfmac WiFi driver prior to commit a4176ec356c73a46c07c181c6d04039fafa34a9f is vulnerable to a frame validation bypass. If the brcmfmac driver receives a firmware event frame from a remote source, the is_wlc_event_frame function will cause this frame to be discarded and unprocessed. If the driver receives the firmware event frame from the host, the appropriate handler is called. This frame validation can be bypassed if the bus used is USB (for instance by a wifi dongle). This can allow firmware event frames from a remote source to be processed. In the worst case scenario, by sending specially-crafted WiFi packets, a remote, unauthenticated attacker may be able to execute arbitrary code on a vulnerable system. More typically, this vulnerability will result in denial-of-service conditions.

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1HIGH 7.9CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:Hcertcc
CVSS 3.1HIGH 7.9CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:HNVD · cret@cert.org (Secondary)
CVSS 3.1HIGH 8.3CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:HNVD · nvd@nist.gov (Primary)
CVSS 2.0HIGH 7.9AV:A/AC:M/Au:N/C:C/I:C/A:CNVD · nvd@nist.gov (Primary)

Faiblesses (CWE)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Broadcom · brcmfmac WiFi driveraffected commit prior to a4176ec356c73a46c07c181c6d04039fafa34a9f

Références

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD