CVE-2021-45699

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.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.55%
Third-Party Advisory githubusercontent.com Third-Party Advisory rustsec.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://rustsec.org/advisories/RUSTSEC-2021-0108.html third party advisory
https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/ckb/RUSTSEC-2021-0108.md third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-45699?
CVE-2021-45699 has been scored as a high severity vulnerability.
How to fix CVE-2021-45699?
To fix CVE-2021-45699, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-45699 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-45699 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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