Is CVE-2018-17204 in the CISA KEV catalog?

No. CVE-2018-17204 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2018-17204?

CVE-2018-17204 has a CVSS v3 base score of 4.3 (MEDIUM).

What is the EPSS score for CVE-2018-17204?

CVE-2018-17204 has an EPSS score of 1.91% (77th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2018-17204?

Upgrade openvswitch on debian 11 to 2.10.0+2018.08.28+git.8ca7c82b7d+ds1-1 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2018-17204

MEDIUMEPSS 77th pctl

4.3

CVSS v3

NVD

Description

An issue was discovered in Open vSwitch (OvS) 2.7.x through 2.7.6, affecting parse_group_prop_ntr_selection_method in lib/ofp-util.c. When decoding a group mod, it validates the group type and command after the whole group mod has been decoded. The OF1.5 decoder, however, tries to use the type and command earlier, when it might still be invalid. This causes an assertion failure (via OVS_NOT_REACHED). ovs-vswitchd does not enable support for OpenFlow 1.5 by default.

CWE-617

How to fix

Remediation Available

openvswitchDebian

Fixed in:2.10.0+2018.08.28+git.8ca7c82b7d+ds1-1CVE-2018-17204

openvswitchUbuntu

Fixed in:2.5.5-0ubuntu0.16.04.2USN-3873-1

Fixed in:2.9.2-0ubuntu0.18.04.3USN-3873-1

openvswitch-commonUbuntu

Fixed in:2.5.5-0ubuntu0.16.04.2USN-3873-1

Fixed in:2.9.2-0ubuntu0.18.04.3USN-3873-1

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

ConfidentialityNone

IntegrityNone

AvailabilityLow

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

Exploit Intelligence

1.91%probability of exploitation in 30 days

77thpercentile

Elevated risk: more likely to be exploited than 77% of all known CVEs.

References

Patch1

github.com

Third-Party Advisory5

Related Vulnerabilities

Other CWE-617 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-8617	High	7.5	93%	-	Fix
CVE-2020-36222	High	7.5	78%	-	Fix
CVE-2006-5779	High	7.5	75%	-	Fix
CVE-2021-27212	High	7.5	64%	-	Fix
CVE-2018-5740	High	7.5	59%	-	Fix
CVE-2023-28425	Medium	5.5	55%	-	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.