CVE-2019-9501

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.

CVSS v3 8.8 HIGH
CVSS v2.0 8.3 HIGH

8.8^/10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

8.3^/10

CVSS v2.0 : HIGH

V2 Legend

Vector : AV:A/AC:L/Au:N/C:C/I:C/A:C

Exploitability : 6.5 / Impact : 10.0

Access Vector ADJACENT_NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://blog.quarkslab.com/reverse-engineering-broadcom-wireless-chipsets.html	Exploit Third Party Advisory
https://kb.cert.org/vuls/id/166939/	Third Party Advisory US Government Resource

Configurations

Configuration 1 (hide)

cpe:2.3:a:synology:router_manager:1.2:*:*:*:*:*:*:*

Configuration 2 (hide)

AND

cpe:2.3:o:broadcom:bcm4339_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:broadcom:bcm4339:-:*:*:*:*:*:*:*

History

No history.

Information

Published : 2020-02-03 21:15

Updated : 2020-02-10 14:28

NVD link : CVE-2019-9501

Mitre link : CVE-2019-9501

CVE.ORG link : CVE-2019-9501

JSON object : View

Products Affected

broadcom

bcm4339_firmware
bcm4339

synology

router_manager

CWE

CWE-787

Out-of-bounds Write

CWE-122

Heap-based Buffer Overflow

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8.8 /10