CVE-2019-9500

CVE Details

Release Date:	2020-01-16
Impact:	None	What is this?

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.

See more information about CVE-2019-9500 from MITRE CVE dictionary and NIST NVD

NOTE: The following CVSS metrics and score provided are preliminary and subject to review.

CVSS v3 metrics

Base Score:	8.3
Vector String:	CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Version:	3.0
Attack Vector:	Adjacent_Network
Attack Complexity:	High
Privileges Required:	None
User Interaction:	None
Scope:	Changed
Confidentiality Impact:	High
Integrity Impact:	High
Availability Impact:	High

Errata information

Platform	Errata	Release Date
Oracle Linux version 7 (kernel)	ELSA-2019-2600	2019-09-04
Oracle Linux version 7 (kernel-uek)	ELSA-2020-5715	2020-06-09
Oracle Linux version 8 (kernel)	ELSA-2019-2703	2019-09-12