PT-2021-10438 · Ethereum · Ethereum

Published 2021-05-24 · Updated 2021-09-20 · CVE-2020-20178

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions: Ethereum 0xe933c0cd9784414d5f278c114904f5a84b396919#code.sol latest version

Description: The issue is a denial of service vulnerability in the affected payout function. When the length of a certain array becomes too long, it results in an exception. Attackers can exploit this by creating a series of account addresses.

Recommendations: For the latest version of Ethereum 0xe933c0cd9784414d5f278c114904f5a84b396919#code.sol, consider restricting the length of the array in the payout function to prevent exceptions and potential denial of service attacks. As a temporary workaround, consider disabling the payout function until a patch is available.

Fix

Related Identifiers

CVE-2020-20178

Affected Products

Ethereum

References · 7

• https://nvd.nist.gov/vuln/detail/CVE-2020-20178 · Security Note
• https://osv.dev/vulnerability/CVE-2020-20178 · Vendor Advisory
• https://etherscan.io/address/0xe933c0cd9784414d5f278c114904f5a84b396919 · Vendor Advisory
• https://t.me/cvenotify/20962 · Telegram Post
• https://t.me/cvenotify/14957 · Telegram Post
• https://t.me/cvenotify/15196 · Telegram Post
• https://t.me/cvenotify/16478 · Telegram Post