Is CVE-2018-12018 in the CISA KEV catalog?

No. CVE-2018-12018 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2018-12018?

CVE-2018-12018 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2018-12018?

CVE-2018-12018 has an EPSS score of 4.25% (90th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2018-12018?

Upgrade go ethereum to 1.8.11 or later.

CVE & CISA-KEV Catalog

CVE-2018-12018

HIGHEPSS 90th pctl

7.5

CVSS v3

NVD

Description

The GetBlockHeadersMsg handler in the LES protocol implementation in Go Ethereum (aka geth) before 1.8.11 may lead to an access violation because of an integer signedness error for the array index, which allows attackers to launch a Denial of Service attack by sending a packet with a -1 query.Skip value. The vulnerable remote node would be crashed by such an attack immediately, aka the EPoD (Ethereum Packet of Death) issue.

CWE-129

How to fix

Remediation Available

go ethereumNVD

Affected:< 1.8.11Fixed in:1.8.11CVE-2018-12018derived from NVD

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 RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

4.25%probability of exploitation in 30 days

90thpercentile

Elevated risk: more likely to be exploited than 90% of all known CVEs.

References

Patch2

Exploit1

peckshield.com

Third-Party Advisory1

github.com

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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.