CVE-2020-26800

CVSS V2 Medium 4.3 CVSS V3 Medium 5.5

Description

A stack overflow vulnerability in Aleth Ethereum C++ client version <= 1.8.0 using a specially crafted a config.json file may result in a denial of service.

Overview

CVE ID
CVE-2020-26800

Assigner
cve@mitre.org

Vulnerability Status
Analyzed

Published Version
2021-01-11T13:15:13

Last Modified Date
2021-01-13T19:57:18

Weakness Enumerations

CWE	URL
CWE-787	http://cwe.mitre.org/data/definitions/787.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version Start	Version End
cpe:2.3:a:ethereum:aleth::::::::	1	OR		1.8.0

CVSS Version 2

Version
2.0

Vector String
AV:N/AC:M/Au:N/C:N/I:N/A:P

Access Vector
NETWORK

Access Compatibility
MEDIUM

Authentication
NONE

Confidentiality Impact
NONE

Integrity Impact
NONE

Availability Impact
PARTIAL

Base Score
4.3

Severity
MEDIUM

Exploitability Score
8.6

Impact Score
2.9

CVSS Version 3

Version
3.1

Vector String
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Attack Vector
LOCAL

Attack Compatibility
LOW

Privileges Required
NONE

User Interaction
REQUIRED

Scope
UNCHANGED

Confidentiality Impact
NONE

Availability Impact
HIGH

Base Score
5.5

Base Severity
MEDIUM

Exploitability Score
1.8

Impact Score
3.6

References

Reference URL	Reference Tags
https://github.com/ethereum/aleth	Third Party Advisory
https://github.com/ethereum/aleth/issues/5917	Exploit Third Party Advisory
https://ethereum.org/en/about/	Vendor Advisory

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2020-26800
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-26800

History

Created	Old Value	New Value	Data Type	Notes
2022-05-10 07:27:23				Added to TrackCVE
2022-12-05 19:41:50	2021-01-11T13:15Z	2021-01-11T13:15:13	CVE Published Date	updated
2022-12-05 19:41:50		2021-01-13T19:57:18	CVE Modified Date	updated
2022-12-05 19:41:50		Analyzed	Vulnerability Status	updated