CVE-2023-1901

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    CVE-2023-1901

    Published: 10 Jul 2023Last Modified: 12 Aug 2026

    Summary: HCI send_sync Dangling Semaphore Reference Re-use

    Details: 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.

    References: https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/1xxx/CVE-2023-1901.json, https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-xvvm-8mcm-9cq3, https://nvd.nist.gov/vuln/detail/CVE-2023-1901, https://github.com/zephyrproject-rtos/zephyr

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    zephyr-v3.3.0

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2023-1901 | CVE-DB