CVE-2019-9502 Information

Description

The Broadcom wl WiFi driver is vulnerable to a heap buffer overflow. If the vendor information element data length is larger than 164 bytes a heap buffer overflow is triggered in wlc_wpa_plumb_gtk. 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.

CVSS Vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

https://blog.quarkslab.com/reverse-engineering-broadcom-wireless-chipsets.html https://kb.cert.org/vuls/id/166939/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.8