CVE-2021-4300

ghostlander Halcyon Block Verification main.cpp AddToBlockIndex access control

Description

A vulnerability has been found in ghostlander Halcyon and classified as critical. Affected by this vulnerability is the function CBlock::AddToBlockIndex of the file src/main.cpp of the component Block Verification. The manipulation leads to improper access controls. The attack can be launched remotely. Upgrading to version 1.1.1.0-hal is able to address this issue. The identifier of the patch is 0675b25ae9cc10b5fdc8ea3a32c642979762d45e. It is recommended to upgrade the affected component. The identifier VDB-217417 was assigned to this vulnerability.

Category

6.3
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.06%
Third-Party Advisory vuldb.com Third-Party Advisory vuldb.com
Affected: ghostlander Halcyon
Published at:
Updated at:

References

Link Tags
https://vuldb.com/?id.217417 permissions required vdb entry third party advisory technical description
https://vuldb.com/?ctiid.217417 permissions required signature third party advisory
https://github.com/ghostlander/Halcyon/commit/0675b25ae9cc10b5fdc8ea3a32c642979762d45e patch
https://github.com/ghostlander/Halcyon/releases/tag/v1.1.1.0-hal patch release notes

Frequently Asked Questions

What is the severity of CVE-2021-4300?
CVE-2021-4300 has been scored as a medium severity vulnerability.
How to fix CVE-2021-4300?
To fix CVE-2021-4300, 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-2021-4300 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-4300 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-4300?
CVE-2021-4300 affects ghostlander Halcyon.
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