Vulnerability CVE-2019-9500: Information

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.

Severity: HIGH (8.3) Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Fixed packages

References to Advisories, Solutions, and Tools

1. Affected configurations:

   1. Configuration 1

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

      ---

      Configuration 2

      cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

      Start including

      4.5

      End excliding

      4.9.181

      ---

      cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

      Start including

      4.10

      End excliding

      4.14.123

      ---

      cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

      Start including

      4.15

      End excliding

      4.19.47

      ---

      cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

      Start including

      4.20

      End excliding

      5.0.20

      ---