CVE-2021-4300
A vulnerability has been found in ghostlander Halcyon and classified as critical.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.66%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.66% probability · 50th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-284
- Affected
- halcyon project/halcyon
- Source
- cna@vuldb.com
References
- https://github.com/ghostlander/Halcyon/commit/0675b25ae9cc10b5fdc8ea3a32c642979762d45ePatch
- https://github.com/ghostlander/Halcyon/releases/tag/v1.1.1.0-halRelease Notes
- https://vuldb.com/?ctiid.217417Permissions Required, Third Party Advisory
- https://vuldb.com/?id.217417Permissions Required, Third Party Advisory
- https://github.com/ghostlander/Halcyon/commit/0675b25ae9cc10b5fdc8ea3a32c642979762d45ePatch
- https://github.com/ghostlander/Halcyon/releases/tag/v1.1.1.0-halRelease Notes
- https://vuldb.com/?ctiid.217417Permissions Required, Third Party Advisory
- https://vuldb.com/?id.217417Permissions Required, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.