PT-2019-4382 · Broadcom · Broadcom Wi-Fi Driver

Hugues Anguelkov · Published 2019-04-17 · Updated 2020-07-01 · CVE-2019-9501

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Broadcom wl WiFi driver (affected versions not specified)

Description The issue is related to a heap buffer overflow in the wlc wpa sup eapol function of the Broadcom wl WiFi driver. This can be triggered by supplying a vendor information element with a data length larger than 32 bytes. A remote, unauthenticated attacker may be able to execute arbitrary code on a vulnerable system or cause denial-of-service conditions by sending specially-crafted WiFi packets.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Memory Corruption

Heap Based Buffer Overflow

Weakness Enumeration

CWE-787

CWE-122

Related Identifiers

ASB-A-130373736

BDU:2020-00104

CVE-2019-9501

Affected Products

Broadcom Wi-Fi Driver

References · 10

• 🔥 https://blog.quarkslab.com/reverse-engineering-broadcom-wireless-chipsets.html · Exploit
• https://osv.dev/vulnerability/ASB-A-130373736 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2019-9501 · Vendor Advisory
• https://bdu.fstec.ru/vul/2020-00104 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2019-9501 · Security Note
• https://t.me/cvenotify/738 · Telegram Post
• https://kb.cert.org/vuls/id/166939 · Note
• https://securitylab.ru/news/498839.php · Note
• https://source.android.com/security/bulletin/2020-07-01 · Note
• https://t.me/cvenotify/793 · Telegram Post