5.5
MEDIUM
CVE-2020-26800
Aleth Ethereum C++ Client Stack Overflow DoS
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.

INFO

Published Date :

Jan. 11, 2021, 1:15 p.m.

Last Modified :

Jan. 13, 2021, 7:57 p.m.

Remotely Exploitable :

No

Impact Score :

3.6

Exploitability Score :

1.8
Public PoC/Exploit Available at Github

CVE-2020-26800 has a 1 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2020-26800 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Ethereum aleth
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2020-26800.

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

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Solidity Forcibly Send Ether Vulnerability to a Smart Contract continuation of the list of general EcoSystem security from attacks

ecosystem eth ethereum ethereum-contract smart-contracts solidity solidity-codes solidity-contracts vulnerabilities vulnerability

JavaScript

Updated: 3 months, 1 week ago
3 stars 0 fork 0 watcher
Born at : June 5, 2023, 5:39 p.m. This repo has been linked 31 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2020-26800 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2020-26800 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Jan. 13, 2021

    Action Type Old Value New Value
    Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism
    Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:N/I:N/A:P)
    Added CVSS V3.1 NIST AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
    Changed Reference Type https://ethereum.org/en/about/ No Types Assigned https://ethereum.org/en/about/ Vendor Advisory
    Changed Reference Type https://github.com/ethereum/aleth No Types Assigned https://github.com/ethereum/aleth Third Party Advisory
    Changed Reference Type https://github.com/ethereum/aleth/issues/5917 No Types Assigned https://github.com/ethereum/aleth/issues/5917 Exploit, Third Party Advisory
    Added CWE NIST CWE-787
    Added CPE Configuration OR *cpe:2.3:a:ethereum:aleth:*:*:*:*:*:*:*:* versions up to (including) 1.8.0
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2020-26800 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2020-26800 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.13 }} 0.01%

score

0.46876

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability