Vulnerability Monitor

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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.

Published

2020-01-16T21:15:12.007

Last Modified

2024-11-21T04:51:44.480

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.9 (HIGH)

CVSSv2 Vector

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

  • Access Vector: ADJACENT_NETWORK
  • Access Complexity: MEDIUM
  • Authentication: NONE
  • Confidentiality Impact: COMPLETE
  • Integrity Impact: COMPLETE
  • Availability Impact: COMPLETE
Exploitability Score

5.5

Impact Score

10.0

Weaknesses
  • Type: Secondary
    CWE-122
  • Type: Primary
    CWE-787
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application broadcom brcmfmac_driver - Yes
Operating System linux linux_kernel < 4.9.181 Yes
Operating System linux linux_kernel < 4.14.123 Yes
Operating System linux linux_kernel < 4.19.47 Yes
Operating System linux linux_kernel < 5.0.20 Yes
References