What is CVE-2021-45699?

CVE-2021-45699 is a high-severity vulnerability in Nervos Ckb, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2021-12-27.

How severe is CVE-2021-45699?

High severity. CVSS v3 base score is 7.5 out of 10.

Resource exhaustion in Nervos Ckb

CVE-2021-45699

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.

EPSS: 0.015 (71.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Nervos Ckb
N/a — versions n/a

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

cve@mitre.org (Third Party Advisory, x_refsource_MISC)
cve@mitre.org (Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-45699?: CVE-2021-45699 is a high-severity vulnerability in Nervos Ckb, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2021-12-27.
How severe is CVE-2021-45699?: High severity. CVSS v3 base score is 7.5 out of 10.