UBUNTU-CVE-2021-31615

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    UBUNTU-CVE-2021-31615

    Published: 25 Jun 2021Last Modified: 17 Sept 2026
    Upstream:
    CVE-2021-31615

    Summary:

    Details: Unencrypted Bluetooth Low Energy baseband links in Bluetooth Core Specifications 4.0 through 5.2 may permit an adjacent device to inject a crafted packet during the receive window of the listening device before the transmitting device initiates its packet transmission to achieve full MITM status without terminating the link. When applied against devices establishing or using encrypted links, crafted packets may be used to terminate an existing link, but will not compromise the confidentiality or integrity of the link.

    References: https://ubuntu.com/security/CVE-2021-31615, https://bluetooth.com, https://www.bluetooth.com/learn-about-bluetooth/key-attributes/bluetooth-security/injectable/, https://www.cve.org/CVERecord?id=CVE-2021-31615

    Affected packages

    Package

    Name: linux

    Purl: pkg:deb/ubuntu/linux?arch=source&distro=esm-infra-legacy%2Ftrusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    3.11.0-12.19

    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
    UBUNTU-CVE-2021-31615 | CVE-DB