CVE-2019-9500

The Broadcom brcmfmac WiFi driver prior to commit 1b5e2423164b3670e8bc9174e4762d297990deff is vulnerable to a heap buffer overflow. If the Wake-up on Wireless LAN functionality is configured, a malicious event frame can be constructed to trigger an heap buffer overflow in the brcmf_wowl_nd_results function. This vulnerability can be exploited with compromised chipsets to compromise the host, or when used in combination with CVE-2019-9503, can be used remotely. 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 v3.0 8.3 HIGH
CVSS v2.0 7.9 HIGH

8.3^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 1.6 / Impact : 6.0

Attack Vector ADJACENT_NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

7.9^/10

CVSS v2.0 : HIGH

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

Exploitability : 5.5 / Impact : 10.0

Access Vector ADJACENT_NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://kb.cert.org/vuls/id/166939/	Third Party Advisory US Government Resource
https://git.kernel.org/linus/1b5e2423164b3670e8bc9174e4762d297990deff	Patch Third Party Advisory
https://blog.quarkslab.com/reverse-engineering-broadcom-wireless-chipsets.html	Exploit Third Party Advisory

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Configurations

Configuration 1 (hide)

cpe:2.3:a:broadcom:brcmfmac_driver:-:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

Information

Published : 2020-01-16 13:15

Updated : 2023-01-19 07:53

NVD link : CVE-2019-9500

Mitre link : CVE-2019-9500

JSON object : View

CWE

CWE-787

Out-of-bounds Write

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Products Affected

broadcom

brcmfmac_driver

linux

linux_kernel

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