title: Broadcom wl driver is vulnerable to heap buffer overflow
description: The Broadcom wl WiFi driver is vulnerable to a heap buffer overflow. By supplying a vendor information element with a data length larger than 32 bytes, a heap buffer overflow is triggered in wlc_wpa_sup_eapol. 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.
problem types: CWE-122 Heap-based Buffer Overflow
affected:
{
product: WiFi drivers
vendor: Broadcom
versions:
status: affected, version: wl
}
metrics:
cvssV3_1: [
attackComplexity: HIGH
attackVector: ADJACENT_NETWORK
availabilityImpact: HIGH
baseScore: 7.9
baseSeverity: HIGH
confidentialityImpact: HIGH
integrityImpact: HIGH
privilegesRequired: NONE
scope: CHANGED
userInteraction: REQUIRED
vectorString: CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
version: 3.1
]