UBUNTU-CVE-2019-5885

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    UBUNTU-CVE-2019-5885

    Published: 21 Mar 2019Last Modified: 4 Feb 2026
    Upstream:
    CVE-2019-5885
    Aliases:
    USN-6076-1

    Summary:

    Details: Matrix Synapse before 0.34.0.1, when the macaroon_secret_key authentication parameter is not set, uses a predictable value to derive a secret key and other secrets which could allow remote attackers to impersonate users.

    References: https://ubuntu.com/security/CVE-2019-5885, https://matrix.org/blog/2019/01/10/critical-security-update-synapse-0-34-0-1-synapse-0-34-1-1/, https://ubuntu.com/security/notices/USN-6076-1, https://www.cve.org/CVERecord?id=CVE-2019-5885

    Affected packages

    Package

    Name: matrix-synapse

    Purl: pkg:deb/ubuntu/[email protected]+dfsg-1ubuntu0.1~esm1?arch=source&distro=esm-apps/bionic

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -0.24.0+dfsg-1ubuntu0.1~esm1

    Affected versions

    0.19.2+dfsg-6

    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-2019-5885 | CVE-DB