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.
Metrics
CVSS 3.1 8.8/10
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Broadcom | WiFi drivers | wl |
References
- https://blog.quarkslab.com/reverse-engineering-broadcom-wireless-chipsets.htmlThird Party Advisory
- https://kb.cert.org/vuls/id/166939/Third Party Advisory, US Government Resource
- https://blog.quarkslab.com/reverse-engineering-broadcom-wireless-chipsets.htmlThird Party Advisory
- https://kb.cert.org/vuls/id/166939/Third Party Advisory, US Government Resource
Timeline
- Published
- Feb 3, 2020
- Last modified
- Jun 17, 2026
- NVD status
- Modified