DEBIAN-CVE-2020-26558

    Dashboard / Vulnerabilities / DEBIAN-CVE-2020-26558

    DEBIAN-CVE-2020-26558

    Published: 24 May 2021Last Modified: 11 Sept 2026
    Upstream:
    CVE-2020-26558

    Summary:

    Details: Bluetooth LE and BR/EDR secure pairing in Bluetooth Core Specification 2.1 through 5.2 may permit a nearby man-in-the-middle attacker to identify the Passkey used during pairing (in the Passkey authentication procedure) by reflection of the public key and the authentication evidence of the initiating device, potentially permitting this attacker to complete authenticated pairing with the responding device using the correct Passkey for the pairing session. The attack methodology determines the Passkey value one bit at a time.

    References: https://security-tracker.debian.org/tracker/CVE-2020-26558

    Affected packages

    Package

    Name: bluez

    Purl: pkg:deb/debian/bluez?arch=source&distro=bookworm

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -5.55-3.1

    Affected versions

    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
    DEBIAN-CVE-2020-26558 | CVE-DB