GHSA-hvxr-2fvv-c3wq

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    GHSA-hvxr-2fvv-c3wq

    Published: 13 May 2022Last Modified: 10 Sept 2026

    Summary: OpenStack Neutron Race Condition vulnerability

    Details: A race-condition flaw was discovered in openstack-neutron before 7.2.0-12.1, 8.x before 8.3.0-11.1, 9.x before 9.3.1-2.1, and 10.x before 10.0.2-1.1, where, following a minor overcloud update, neutron security groups were disabled. Specifically, the following were reset to 0: net.bridge.bridge-nf-call-ip6tables and net.bridge.bridge-nf-call-iptables. The race was only triggered by an update, at which point an attacker could access exposed tenant VMs and network resources.

    References: https://nvd.nist.gov/vuln/detail/CVE-2017-7543, https://access.redhat.com/errata/RHSA-2017:2447, https://access.redhat.com/errata/RHSA-2017:2448, https://access.redhat.com/errata/RHSA-2017:2449, https://access.redhat.com/errata/RHSA-2017:2450, https://access.redhat.com/errata/RHSA-2017:2451, https://access.redhat.com/errata/RHSA-2017:2452, https://access.redhat.com/security/cve/CVE-2017-7543, https://bugzilla.redhat.com/show_bug.cgi?id=1473792, https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7543, https://opendev.org/openstack/neutron, https://web.archive.org/web/20200227153412/https://www.securityfocus.com/bid/100237

    Affected packages

    Package

    Name: neutron

    Purl: pkg:pypi/neutron

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -7.2.0-12.1

    Affected versions

    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
    GHSA-hvxr-2fvv-c3wq | CVE-DB