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Allocation of Resources Without Limits or Throttling in ckb

High severity GitHub Reviewed Published Jan 6, 2022 to the GitHub Advisory Database • Updated Jun 13, 2023

Package

cargo ckb (Rust)

Affected versions

< 0.40.0

Patched versions

0.40.0

Description

An issue was discovered in the ckb crate before 0.40.0 for Rust. Remote attackers may be able to conduct a 51% attack against the Nervos CKB blockchain by triggering an inability to allocate memory for the misbehavior HashMap.

References

Published by the National Vulnerability Database Dec 27, 2021
Reviewed Jan 5, 2022
Published to the GitHub Advisory Database Jan 6, 2022
Last updated Jun 13, 2023

Severity

High
7.5
/ 10

CVSS base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weaknesses

CVE ID

CVE-2021-45699

GHSA ID

GHSA-2969-8hh9-57jc

Source code

Checking history
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