PT-2021-20807 · Unknown · Fisco-Bcos

Fcorleone · Published 2021-06-23 · Updated 2022-07-12 · CVE-2021-35041

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: FISCO-BCOS version 2.7.2

Description: The blockchain node in FISCO-BCOS may have a bug when dealing with unformatted packets, leading to a crash. A malicious node can send a packet continuously in an incorrect format that cannot be decoded by the node correctly, causing the node to consume memory sustainably and crash.

Recommendations: For FISCO-BCOS version 2.7.2, consider updating to a newer version that contains a fix for this issue, as the current version may be prone to crashes due to incorrectly formatted packets. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

RCE

Weakness Enumeration

CWE-20

Related Identifiers

CVE-2021-35041

Affected Products

Fisco-Bcos

References · 6

• 🔥 https://github.com/FISCO-BCOS/FISCO-BCOS/issues/1951 · Exploit
• https://osv.dev/vulnerability/CVE-2021-35041 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-35041 · Security Note
• https://github.com/FISCO-BCOS/FISCO-BCOS · Note
• https://t.me/cibsecurity/25665 · Telegram Post
• https://t.me/cvenotify/16868 · Telegram Post