CVE-2021-45699
High
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.
SeverityHigh
CVSS7.5
Exploit probability—
ProductNervos Ckb
PublishedDec 27, 2021
First seenDec 27, 2021
How to fix
Update
- nervos ckb0.40.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| nervos ckb | v < 0.40.0 | 0.40.0 |
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