UBUNTU-CVE-2019-9735

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    UBUNTU-CVE-2019-9735

    Published: 12 Mar 2019Last Modified: 4 Feb 2026
    Upstream:
    CVE-2019-9735
    Aliases:
    USN-4036-1

    Summary:

    Details: An issue was discovered in the iptables firewall module in OpenStack Neutron before 10.0.8, 11.x before 11.0.7, 12.x before 12.0.6, and 13.x before 13.0.3. By setting a destination port in a security group rule along with a protocol that doesn't support that option (for example, VRRP), an authenticated user may block further application of security group rules for instances from any project/tenant on the compute hosts to which it's applied. (Only deployments using the iptables security group driver are affected.)

    References: https://ubuntu.com/security/CVE-2019-9735, https://seclists.org/oss-sec/2019/q1/183, https://ubuntu.com/security/notices/USN-4036-1, https://www.cve.org/CVERecord?id=CVE-2019-9735

    Affected packages

    Package

    Name: neutron

    Purl: pkg:deb/ubuntu/neutron@2:8.4.0-0ubuntu7.4?arch=source&distro=xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2:8.4.0-0ubuntu7.4

    Affected versions

    2:7.0.0-0ubuntu1

    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