Is CVE-2020-17376 in the CISA KEV catalog?

No. CVE-2020-17376 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-17376?

CVE-2020-17376 has a CVSS v3 base score of 8.3 (HIGH).

What is the EPSS score for CVE-2020-17376?

CVE-2020-17376 has an EPSS score of 1.71% (75th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-17376?

Upgrade nova on debian 11 to 2:21.1.0-1 or later. Fixes are available for 5 affected products.

CVE & CISA-KEV Catalog

CVE-2020-17376

HIGHEPSS 75th pctl

8.3

CVSS v3

NVD

Description

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.

CWE-611XML External Entity (XXE)

How to fix

Remediation Available

novaDebian

Fixed in:2:21.1.0-1CVE-2020-17376

novaUbuntu

Fixed in:2:13.1.4-0ubuntu4.5+esm1USN-5866-1

Fixed in:2:17.0.13-0ubuntu5.3USN-5866-1

Fixed in:2:21.2.4-0ubuntu2.2USN-5866-1

nova-commonUbuntu

Fixed in:2:13.1.4-0ubuntu4.5+esm1USN-5866-1

Fixed in:2:17.0.13-0ubuntu5.3USN-5866-1

Fixed in:2:21.2.4-0ubuntu2.2USN-5866-1

python-novaUbuntu

Fixed in:2:13.1.4-0ubuntu4.5+esm1USN-5866-1

Fixed in:2:17.0.13-0ubuntu5.3USN-5866-1

python3-novaUbuntu

Fixed in:2:21.2.4-0ubuntu2.2USN-5866-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityLow

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L

Exploit Intelligence

1.71%probability of exploitation in 30 days

75thpercentile

Elevated risk: more likely to be exploited than 75% of all known CVEs.

References

Patch2

Exploit1

launchpad.net

Related Vulnerabilities

Other CWE-611 (XML External Entity (XXE)) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-34102	Critical	9.8	100%	KEV	Fix
CVE-2019-9670	Critical	9.8	100%	KEV	Fix
CVE-2022-28219	Critical	9.8	97%	-	-
CVE-2024-22024	High	8.3	95%	-	-
CVE-2024-38653	High	7.5	92%	-	-
CVE-2017-12629	Critical	9.8	92%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.