CVE-2017-2637
highpriority · track · 42OT risk · elevatedEPSS 0.046 · 92 %ileEUUSEPSS · scored 2026-10-27
A design flaw issue was found in the Red Hat OpenStack Platform director use of TripleO to enable libvirtd based live-migration. Libvirtd is deployed by default (by director) listening on 0.0.0.0 (all interfaces) with no-authentication or encryption. Anyone able to make a TCP connection to any compute host IP address, including 127.0.0.1, other loopback interface addresses, or in some cases possibly addresses that have been exposed beyond the management interface, could use this to open a virsh session to the libvirtd instance and gain control of virtual machine instances or possibly take over the host.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 9.1–10
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (5)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
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references (26)
External citations — patches, advisories, analysis.
- https://access.redhat.com/errata/RHSA-2017:1242cnnvd
- https://access.redhat.com/errata/RHSA-2017:1504cnnvd
- https://access.redhat.com/errata/RHSA-2017:1537cnnvd
- https://access.redhat.com/errata/RHSA-2017:1546cnnvd
- https://access.redhat.com/security/cve/CVE-2017-2637cnnvd
- https://access.redhat.com/solutions/3022771cnnvd
- https://bugzilla.redhat.com/show_bug.cgi?id=1428240cnnvd
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2637cnnvd
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