CVE-2016-0747

    Dashboard / Vulnerabilities / CVE-2016-0747

    CVE-2016-0747

    Published: 15 Feb 2016Last Modified: 8 Jul 2026

    Summary:

    Details: The resolver in nginx before 1.8.1 and 1.9.x before 1.9.10 does not properly limit CNAME resolution, which allows remote attackers to cause a denial of service (worker process resource consumption) via vectors related to arbitrary name resolution.

    References: http://lists.opensuse.org/opensuse-updates/2016-02/msg00042.html, http://mailman.nginx.org/pipermail/nginx/2016-January/049700.html, http://seclists.org/fulldisclosure/2021/Sep/36, http://www.debian.org/security/2016/dsa-3473, http://www.securitytracker.com/id/1034869, http://www.ubuntu.com/usn/USN-2892-1, https://access.redhat.com/errata/RHSA-2016:1425, https://bto.bluecoat.com/security-advisory/sa115, https://security.gentoo.org/glsa/201606-06, https://support.apple.com/kb/HT212818, https://bugzilla.redhat.com/show_bug.cgi?id=1302589

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- cb1cdc7426ba5470197f1a1ca5e8fe485223e558
    Fixed -759af1a42404d87a2ba51dc94e902b7a5ea5491e

    Affected versions

    release-1.9.9
    release-1.9.8
    release-1.9.7
    release-1.9.6
    release-1.9.5
    release-1.9.4
    release-1.9.3
    release-1.9.2
    release-1.9.1
    release-1.9.0

    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
    CVE-2016-0747 | CVE-DB