Security Features in Go Ethereum

Published: 2020-12-15

Risk	Medium
Patch available	YES
Number of vulnerabilities	1
CVE-ID	CVE-2020-26265
CWE-ID	CWE-254
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	go-ethereum Other software / Other software solutions
Vendor	Ethereum

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Security Features

EUVDB-ID: #VU48993

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-26265

CWE-ID: CWE-254 - Security Features

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass security features.

The vulnerability exists due to a consensus flaw. A remote attacker can send a specially crafted request abd cause a chain split.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

go-ethereum: 1.9.4 - 1.9.19

External links

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.