CVE-2017-2637
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (4.60%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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 3.0
- 10.0 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
- EPSS
- 4.60% probability · 92th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-306
- Affected
- redhat/openstack
- Source
- secalert@redhat.com
EPSS 4.6% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.securityfocus.com/bid/98576Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2017:1242Vendor Advisory
- https://access.redhat.com/errata/RHSA-2017:1504Vendor Advisory
- https://access.redhat.com/errata/RHSA-2017:1537Vendor Advisory
- https://access.redhat.com/errata/RHSA-2017:1546Vendor Advisory
- https://access.redhat.com/solutions/3022771Mitigation, Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2637Issue Tracking, Mitigation, Vendor Advisory
- https://wiki.openstack.org/wiki/OSSN/OSSN-0007Vendor Advisory
- http://www.securityfocus.com/bid/98576Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2017:1242Vendor Advisory
- https://access.redhat.com/errata/RHSA-2017:1504Vendor Advisory
- https://access.redhat.com/errata/RHSA-2017:1537Vendor Advisory
- https://access.redhat.com/errata/RHSA-2017:1546Vendor Advisory
- https://access.redhat.com/solutions/3022771Mitigation, Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2637Issue Tracking, Mitigation, Vendor Advisory
- https://wiki.openstack.org/wiki/OSSN/OSSN-0007Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.