5.9
CVE-2017-7543
- EPSS 1.85%
- Veröffentlicht 26.07.2018 14:29:00
- Zuletzt bearbeitet 21.11.2024 03:32:07
- Erkennungen
LoginA 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.
| Typ | Quelle | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 1.85% | 0.763 |
| Quelle | Base Score | Exploit Score | Impact Score | Vector String |
|---|---|---|---|---|
| NIST | 5.9 | 2.2 | 3.6 |
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
|
| NIST | 4.3 | 8.6 | 2.9 |
AV:N/AC:M/Au:N/C:P/I:N/A:N
|
| RedHat | 5.3 | 1.6 | 3.6 |
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
|
CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.
http://www.securityfocus.com/bid/100237
https://access.redhat.com/errata/RHSA-2017:2447
https://access.redhat.com/errata/RHSA-2017:2448
https://access.redhat.com/errata/RHSA-2017:2449
https://access.redhat.com/errata/RHSA-2017:2450
https://access.redhat.com/errata/RHSA-2017:2451
https://access.redhat.com/errata/RHSA-2017:2452
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7543