CVE-2016-7069

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    CVE-2016-7069

    Published: 11 Sept 2018Last Modified: 7 Aug 2026

    Summary:

    Details: An issue has been found in dnsdist before 1.2.0 in the way EDNS0 OPT records are handled when parsing responses from a backend. When dnsdist is configured to add EDNS Client Subnet to a query, the response may contain an EDNS0 OPT record that has to be removed before forwarding the response to the initial client. On a 32-bit system, the pointer arithmetic used when parsing the received response to remove that record might trigger an undefined behavior leading to a crash.

    References: http://www.securityfocus.com/bid/100509, https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7069, https://dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2017-01.html

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    dnsdist-1.2.0

    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