MGASA-2018-0252

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    MGASA-2018-0252

    Published: 24 May 2018Last Modified: 16 Apr 2026

    Summary: Updated pdns-recursor package fixes security vulnerability

    Details: An issue has been found in the DNSSEC validation component of PowerDNS Recursor, allowing an ancestor delegation NSEC or NSEC3 record to be used to wrongfully prove the non-existence of a RR below the owner name of that record. This would allow an attacker in position of man-in-the-middle to send a NXDOMAIN answer for a name that does exist (CVE-2018-1000003).

    References: https://advisories.mageia.org/MGASA-2018-0252.html, https://bugs.mageia.org/show_bug.cgi?id=22935, https://doc.powerdns.com/recursor/security-advisories/powerdns-advisory-2018-01.html, https://blog.powerdns.com/2018/03/29/powerdns-recursor-4-1-2-released/, https://lists.opensuse.org/opensuse-updates/2018-04/msg00033.html

    Affected packages

    Package

    Name: pdns-recursor

    Purl: pkg:rpm/mageia/pdns-recursor?arch=source&distro=mageia-6

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -4.1.2-3.mga6

    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