PT-2021-11274 · Unknown · Aleth Ethereum C++ Client

Cr0Wtom · Published 2021-01-11 · Updated 2021-01-13 · CVE-2020-26800

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: Aleth Ethereum C++ client versions prior to 1.8.1

Description: A stack overflow issue may occur in the Aleth Ethereum C++ client when a specially crafted config.json file is used, potentially resulting in a denial of service.

Recommendations: For versions prior to 1.8.1, update to version 1.8.1 or later to resolve the issue.

Exploit

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2020-26800

Affected Products

Aleth Ethereum C++ Client

References · 5

• 🔥 https://github.com/ethereum/aleth/issues/5917 · Exploit
• https://osv.dev/vulnerability/CVE-2020-26800 · Vendor Advisory
• https://ethereum.org/en/about · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-26800 · Security Note
• https://github.com/ethereum/aleth · Note