CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
AI Score
Confidence
High
EPSS
Percentile
70.3%
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.
[
{
"product": "openstack-neutron",
"vendor": "Red Hat",
"versions": [
{
"status": "affected",
"version": "openstack-neutron-10.0.2-1.1"
},
{
"status": "affected",
"version": "openstack-neutron-8.3.0-11.1"
},
{
"status": "affected",
"version": "openstack-neutron-9.3.1-2.1"
},
{
"status": "affected",
"version": "openstack-neutron-7.2.0-12.1"
}
]
}
]
www.securityfocus.com/bid/100237
access.redhat.com/errata/RHSA-2017:2447
access.redhat.com/errata/RHSA-2017:2448
access.redhat.com/errata/RHSA-2017:2449
access.redhat.com/errata/RHSA-2017:2450
access.redhat.com/errata/RHSA-2017:2451
access.redhat.com/errata/RHSA-2017:2452
bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7543
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
AI Score
Confidence
High
EPSS
Percentile
70.3%