CVE-2014-0239

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    CVE-2014-0239

    Published: 28 May 2014Last Modified: 10 Apr 2026

    Summary:

    Details: The internal DNS server in Samba 4.x before 4.0.18 does not check the QR field in the header section of an incoming DNS message before sending a response, which allows remote attackers to cause a denial of service (CPU and bandwidth consumption) via a forged response packet that triggers a communication loop, a related issue to CVE-1999-0103.

    References: http://secunia.com/advisories/59579, http://security.gentoo.org/glsa/glsa-201502-15.xml, http://www.samba.org/samba/security/CVE-2014-0239, http://www.securityfocus.com/bid/67691, http://www.securitytracker.com/id/1030309

    Affected packages

    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