CVE-2021-45699
HIGHckb < 0.40.0 - Denial of Service via Memory Allocation Failure in Misbehavior HashMap
Title source: llmDescription
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 (2)
Core 2
Core References
Third Party Advisory x_refsource_misc
https://rustsec.org/advisories/RUSTSEC-2021-0108.html
Third Party Advisory x_refsource_misc
https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/ckb/RUSTSEC-2021-0108.md
Scores
CVSS v3
7.5
EPSS
0.0147
EPSS Percentile
70.3%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-770
Status
published
Products (2)
crates.io/ckb
0 - 0.40.0crates.io
nervos/ckb
< 0.40.0
Published
Dec 27, 2021
Tracked Since
Feb 18, 2026