QID 239640

Date Published: 2021-09-20

QID 239640: Red Hat Update for Red Hat OpenStack Platform 16.2 (openstack-neutron) (RHSA-2021:3488)

Neutron is a virtual network service for OpenStack. Just like OpenStackNova provides an API to dynamically request and configure virtualservers, Neutron provides an API to dynamically request and configurevirtual networks. These networks connect "interfaces" from otherOpenStack services (e.g., virtual NICs from Nova VMs). The NeutronAPI supports extensions to provide advanced network capabilities(e.g., QoS, ACLs, network, monitoring, etc.).

Security Fix(es): arbitrary dnsmasq reconfiguration via extra_dhcp_opts (CVE-2021-40085)

Affected Products:

Red Hat OpenStack 16.2 x86_64
Red Hat OpenStack for IBM Power 16.2 ppc64le

Note: The preceding description block is extracted directly from the security advisory. Using automation, we have attempted to clean and format it as much as possible without introducing additional issues.

On successful exploitation, it could allow an attacker to execute code.

  • CVSS V3 rated as High - 6.5 severity.
  • CVSS V2 rated as Medium - 4 severity.
    • Solution
    Upgrade to the latest packages which contain a patch. Refer to Applying Package Updates to RHEL system for details.

    Refer to Red Hat security advisory RHSA-2021:3488 to address this issue and obtain more information.

    Vendor References

    CVEs related to QID 239640

    CVE-2021-40085 |
    Software Advisories
    Advisory ID Software Component Link
    RHSA-2021:3488 Red Hat Enterprise Linux URL Logo access.redhat.com/errata/RHSA-2021:3488?language=en
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