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MEDIUM · 5.9

CVE-2023-1901

The bluetooth HCI host layer logic not clearing a global reference to a semaphore after synchronously sending HCI commands may allow a malicious HCI Controller to cause the use of a dangling reference...

Vulnerability Description

The bluetooth HCI host layer logic not clearing a global reference to a semaphore after synchronously sending HCI commands may allow a malicious HCI Controller to cause the use of a dangling reference in the host layer, leading to a crash (DoS) or potential RCE on the Host layer.

CVSS Score

5.9

MEDIUM

CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H
Attack Vector
ADJACENT_NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
HIGH

Affected Products

VendorProductVersions
ZephyrprojectZephyr<= 3.3.0

Related Weaknesses (CWE)

CWE-672CWE-787

References

FAQ

What is CVE-2023-1901?

CVE-2023-1901 is a vulnerability with a CVSS score of 5.9 (MEDIUM). The bluetooth HCI host layer logic not clearing a global reference to a semaphore after synchronously sending HCI commands may allow a malicious HCI Controller to cause the use of a dangling reference...

How severe is CVE-2023-1901?

CVE-2023-1901 has been rated MEDIUM with a CVSS base score of 5.9/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2023-1901?

Check the references section above for vendor advisories and patch information. Affected products include: Zephyrproject Zephyr.