What is CVE-2023-40591?

CVE-2023-40591 is a high-severity vulnerability in Ethereum Go-Ethereum, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2023-09-06.

How severe is CVE-2023-40591?

High severity. CVSS v3 base score is 7.5 out of 10.

Resource exhaustion in Ethereum Go-Ethereum

CVE-2023-40591

go-ethereum (geth) is a golang execution layer implementation of the Ethereum protocol. A vulnerable node, can be made to consume unbounded amounts of memory when handling specially crafted p2p messages sent from an attacker node. The fix is included in geth version `1.12.1-stable`, i.e, `1.12.2-unstable` and onwards. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Vulnerability class: DoS (Denial of Service)

EPSS: 0.010 (58.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Ethereum Go-ethereum — versions < 1.12.1-stable
Ethereum Go_ethereum

Weakness classification (CWE)

CWE-400 — Uncontrolled Resource Consumption

References

security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory)
security-advisories@github.com (Product, x_refsource_MISC)
security-advisories@github.com (x_refsource_MISC, Release Notes)

Frequently asked questions

What is CVE-2023-40591?: CVE-2023-40591 is a high-severity vulnerability in Ethereum Go-Ethereum, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2023-09-06.
How severe is CVE-2023-40591?: High severity. CVSS v3 base score is 7.5 out of 10.