Medium severity5.3NVD Advisory· Published Jul 26, 2018· Updated Jun 17, 2026
CVE-2017-7543
CVE-2017-7543
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.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
neutronPyPI | < 7.2.0-12.1 | 7.2.0-12.1 |
neutronPyPI | >= 8.0.0, < 8.3.0-11.1 | 8.3.0-11.1 |
neutronPyPI | >= 9.0.0, < 9.3.1-2.1 | 9.3.1-2.1 |
neutronPyPI | >= 10.0.0, < 10.0.2-1.1 | 10.0.2-1.1 |
Affected products
2Patches
Vulnerability mechanics
References
14- www.securityfocus.com/bid/100237nvdThird Party AdvisoryVDB Entry
- access.redhat.com/errata/RHSA-2017:2447nvdThird Party AdvisoryWEB
- access.redhat.com/errata/RHSA-2017:2448nvdThird Party AdvisoryWEB
- access.redhat.com/errata/RHSA-2017:2449nvdThird Party AdvisoryWEB
- access.redhat.com/errata/RHSA-2017:2450nvdThird Party AdvisoryWEB
- access.redhat.com/errata/RHSA-2017:2451nvdThird Party AdvisoryWEB
- access.redhat.com/errata/RHSA-2017:2452nvdThird Party AdvisoryWEB
- bugzilla.redhat.com/show_bug.cginvdIssue TrackingMitigationThird Party AdvisoryWEB
- github.com/advisories/GHSA-hvxr-2fvv-c3wqghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2017-7543ghsaADVISORY
- access.redhat.com/security/cve/CVE-2017-7543ghsaWEB
- bugzilla.redhat.com/show_bug.cgighsaWEB
- opendev.org/openstack/neutronghsaPACKAGE
- web.archive.org/web/20200227153412/https://www.securityfocus.com/bid/100237ghsaWEB
News mentions
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