GHSA-c7w7-9c85-4qxv · Severity: high · Ecosystem: pip — OpenStack Nova Live migration fails to update persistent domain XML
An issue was discovered in Guest.migrate in virt/libvirt/guest.py in OpenStack Nova before 19.3.1, 20.x before 20.3.1, and 21.0.0. By performing a soft reboot of an instance that has previously undergone live migration, a user may gain access to destination host devices that share the same paths as host devices previously referenced by the virtual machine on the source host. This can include block devices that map to different Cinder volumes at the destination than at the source. Only deployments allowing host-based connections (for instance, root and ephemeral devices) are affected.
Conclusion & alert: CVE-2020-17376 is rated High Exploit Risk (75.5/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.71%). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +1.30% over the last day, indicating growing attacker interest. Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.42% | 1.71% | +1.30% |
| 2 | 2026-02-15 | 0.18% | 0.42% | +0.24% |
| 3 | 2025-11-21 | — | 0.18% | — |
Full EPSS history (11 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 8.3 | 3.1 | HIGH |
|
2.8 | 5.5 | [email protected] |
| 6.5 | 2.0 | MEDIUM |
|
8.0 | 6.4 | [email protected] |
GHSA-c7w7-9c85-4qxv · Severity: high · Ecosystem: pip — OpenStack Nova Live migration fails to update persistent domain XML
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2020-17376 not yet assigned priority: Debian including 1 source packages (nova), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2020-17376 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2020-17376 |
suse
|
high | CVE-2020-17376 severity important: SUSE including 272 source package names (ansible-2.2.3.0-17.2, ansible-2.9.14-3.15.1, …), 448 product×package rows across 6 product lines (HPE Helion OpenStack 8, SUSE OpenStack Cloud 7, … (6 product lines)): Fixed 448. | https://www.suse.com/security/cve/CVE-2020-17376/ |
ubuntu
|
low | CVE-2020-17376 low priority: Ubuntu including 1 source packages (nova), 10 status rows across 10 suites (bionic, focal, groovy, hirsute, impish, jammy, kinetic, trusty, upstream, xenial): not-affected 5, released 2, DNE 1, ignored 1, needs-triage 1. | https://ubuntu.com/security/CVE-2020-17376 |
| URL | Tags |
|---|---|
| http://www.openwall.com/lists/oss-security/2020/08/25/4 | Mailing List Patch Third Party Advisory |
| https://launchpad.net/bugs/1890501 | Exploit Third Party Advisory |
| https://security.openstack.org/ossa/OSSA-2020-006.html | Patch Vendor Advisory |