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CVE-2017-7543 Details

Description

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.

Metrics

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://access.redhat.com/errata/RHSA-2017:2447 CVEThird Party Advisory
https://access.redhat.com/errata/RHSA-2017:2448 CVEThird Party Advisory
https://access.redhat.com/errata/RHSA-2017:2449 CVEThird Party Advisory
https://access.redhat.com/errata/RHSA-2017:2450 CVEThird Party Advisory
https://access.redhat.com/errata/RHSA-2017:2451 CVEThird Party Advisory

see all 16 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')[email protected]
CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')[email protected]

Affected Products

ProductVersions
openstack neutron
>= 7.0.0, < 7.2.0-12.1
>= 8.0.0, < 8.3.0-11.1
>= 9.0.0, < 9.3.1-2.1
>= 10.0.0, < 10.0.2-1.1

CPE

  • cpe:2.3:a:openstack:neutron:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
redhat openstack
6.0
7.0
8
9
10

CPE

  • cpe:2.3:a:redhat:openstack:6.0:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:openstack:7.0:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:openstack:8:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:openstack:9:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:openstack:10:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:openstack:11:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
redhat enterprise linux
7.0

CPE

  • cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

13 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2017-7543
NVD Published Date:
Jul 26, 2018
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2017-7543 Details - Not Deferred