Ubuntu.comUB:CVE-2017-7543CVE-2017-7543
4.3 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:N/A:N
5.9 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
0.003 Low
EPSS
Percentile
70.4%
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.
Notes
| Author | Note |
|---|---|
| mdeslaur | per Debian, this is a Red Hat specific packaging issue |
Related
4.3 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:N/A:N
5.9 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
0.003 Low
EPSS
Percentile
70.4%