Vulnerability Monitor

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CVE-2017-7543

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.

Published

2018-07-26T14:29:00.483

Last Modified

2024-11-21T03:32:07.890

Status

Modified

Source

[email protected]

Severity

CVSSv3.0: 5.3 (MEDIUM)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:P/I:N/A:N

  • Access Vector: NETWORK
  • Access Complexity: MEDIUM
  • Authentication: NONE
  • Confidentiality Impact: PARTIAL
  • Integrity Impact: NONE
  • Availability Impact: NONE
Exploitability Score

8.6

Impact Score

2.9

Weaknesses
  • Type: Primary
    CWE-362
  • Type: Secondary
    CWE-362
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application openstack neutron < 7.2.0-12.1 Yes
Application openstack neutron < 8.3.0-11.1 Yes
Application openstack neutron < 9.3.1-2.1 Yes
Application openstack neutron < 10.0.2-1.1 Yes
Application redhat openstack 6.0 Yes
Operating System redhat enterprise_linux 7.0 No
Application redhat openstack 7.0 Yes
Operating System redhat enterprise_linux 7.0 No
Application redhat openstack 8 Yes
Application redhat openstack 9 Yes
Application redhat openstack 10 Yes
Application redhat openstack 11 Yes
References