UBUNTU-CVE-2019-10191

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    UBUNTU-CVE-2019-10191

    Published: 10 Jul 2019Last Modified: 22 Apr 2026
    Upstream:
    CVE-2019-10191
    Aliases:
    USN-7047-1

    Summary:

    Details: A vulnerability was discovered in DNS resolver of knot resolver before version 4.1.0 which allows remote attackers to downgrade DNSSEC-secure domains to DNSSEC-insecure state, opening possibility of domain hijack using attacks against insecure DNS protocol.

    References: https://ubuntu.com/security/CVE-2019-10191, https://www.cve.org/CVERecord?id=CVE-2019-10191, https://ubuntu.com/security/notices/USN-7047-1

    Affected packages

    Package

    Name: knot-resolver

    Purl: pkg:deb/ubuntu/[email protected]~beta3-1ubuntu0.1~esm1?arch=source&distro=esm-apps/xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    1.0.0~beta2-123-g6134920-1
    1.0.0~beta3-1
    1.0.0~beta3-1ubuntu0.1~esm1

    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