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CVE-2021-45699

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Date: December 26, 2021

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.

Severity Score

Severity Score

Weakness Type (CWE)

Allocation of Resources Without Limits or Throttling

CWE-770

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Upgrade to version https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-45699

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CVSS v3

Base Score:
Attack Vector (AV):
Attack Complexity (AC):
Privileges Required (PR):
User Interaction (UI):
Scope (S):
Confidentiality (C): PARTIAL
Integrity (I): PARTIAL
Availability (A): PARTIAL

CVSS v2

Base Score:
Access Vector (AV):
Access Complexity (AC):
Authentication (AU):
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH
Additional information:

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