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.

CVSS v3.0 6.5 MEDIUM
CVSS v2.0 4.0 MEDIUM

6.5^/10

CVSS v3.0 : MEDIUM

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

4.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:S/C:N/I:N/A:P

Exploitability : 8.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

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

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Configurations

Configuration 1 (hide)

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

Information

Published : 2020-12-11 09:15

Updated : 2020-12-14 10:06

NVD link : CVE-2020-26264

Mitre link : CVE-2020-26264

JSON object : View

CWE

CWE-400

Uncontrolled Resource Consumption

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Products Affected

ethereum

go_ethereum

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