Input validation error in geth - CVE-2020-26264

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Main Vulnerability Database Vulnerabilities #VU48992

Input validation error in geth - CVE-2020-26264

Published: December 11, 2020 / Updated: December 15, 2020


Vulnerability identifier: #VU48992
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-26264
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can send a specially crafted GetProofsV2 request and perform a denial of service (DoS) attack.


Affected software

geth
go-ethereum

How to mitigate CVE-2020-26264

Install updates from vendor's website.

geth - update to 1.9.25
go-ethereum - update to 1.9.25

External References

Related Security Bulletins