CVE-2017-15120

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    CVE-2017-15120

    Published: 27 Jul 2018Last Modified: 7 Aug 2026

    Summary:

    Details: An issue has been found in the parsing of authoritative answers in PowerDNS Recursor before 4.0.8, leading to a NULL pointer dereference when parsing a specially crafted answer containing a CNAME of a different class than IN. An unauthenticated remote attacker could cause a denial of service.

    References: http://www.securityfocus.com/bid/106335, https://www.debian.org/security/2017/dsa-4063, https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-15120, http://seclists.org/oss-sec/2017/q4/382, https://doc.powerdns.com/recursor/security-advisories/powerdns-advisory-2017-08.html

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -fdd1fca63fc4949984b501ed1bca8fa01a23fc61

    Affected versions

    rec-4.0.7
    rec-4.0.6
    rec-4.0.5
    rec-4.0.5-rc2
    rec-4.0.5-rc1
    rec-4.0.4
    rec-4.0.3
    rec-4.0.2
    rec-4.0.1
    rec-4.0.0
    rec-4.0.0-rc1
    rec-4.0.0-beta1
    rec-4.0.0-alpha3
    rec-4.0.0-alpha2
    rec-4.0.0-alpha1

    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
    CVE-2017-15120 | CVE-DB