National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2019-9500 Detail

Current Description

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.

Source:  MITRE
View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score: 8.3 HIGH
Vector:  CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Nist CVSS score does not match with CNA score
CNA:  CERT/CC
Base Score: 7.9 HIGH
Vector:  CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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

Weakness Enumeration

CWE-ID CWE Name Source
CWE-787 Out-of-bounds Write NIST  
CWE-122 Heap-based Buffer Overflow CERT/CC  

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:broadcom:brcmfmac_driver:-:*:*:*:*:*:*:*
     Show Matching CPE(s)


Change History

2 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-9500
NVD Published Date:
01/16/2020
NVD Last Modified:
01/29/2020