CVE Vulnerability

CVE-2020-26264

Go Ethereum, or "Geth", is the official Golang implementation of the Ethereum protocol. In Geth before version 1.9.25 a denial-of-service vulnerability can make a LES server crash via malicious GetProofsV2 request from a connected LES client. This vulnerability only concerns users explicitly enabling les server; disabling les prevents the exploit. The vulnerability was patched in version 1.9.25.

4 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

Scope

6.5 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://github.com/ethereum/go-ethereum/pull/21896 Patch Third Party Advisory
https://github.com/ethereum/go-ethereum/security/advisories/GHSA-r33q-22hv-j29q Third Party Advisory
https://github.com/ethereum/go-ethereum/releases/tag/v1.9.25 Third Party Advisory
https://github.com/ethereum/go-ethereum/commit/bddd103a9f0af27ef533f04e06ea429cf76b6d46 Patch Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:ethereum:go_ethereum:*:*:*:*:*:*:*:*
Information

Published : 2020-12-11 05:15

Updated : 2020-12-14 06:06

NVD link : CVE-2020-26264

Mitre link : CVE-2020-26264

Products Affected
No products.
CWE
CWE-400