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VULNERABILITIES

CVE-2021-43839 Details

Description

Cronos is a commercial implementation of a blockchain. In Cronos nodes running versions before v0.6.5, it is possible to take transaction fees from Cosmos SDK's FeeCollector for the current block by sending a custom crafted MsgEthereumTx. This problem has been patched in Cronos v0.6.5. There are no tested workarounds. All validator node operators are recommended to upgrade to Cronos v0.6.5 at their earliest possible convenience.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://github.com/crypto-org-chain/cronos/commit/150ef237b37ac28c8136e1c0f494932860b9ebe8 CVEPatchThird Party Advisory
https://github.com/crypto-org-chain/cronos/pull/270 CVEPatchThird Party Advisory
https://github.com/crypto-org-chain/cronos/security/advisories/GHSA-f854-hpxv-cw9r CVEThird Party Advisory
https://github.com/crypto-org-chain/cronos/commit/150ef237b37ac28c8136e1c0f494932860b9ebe8 [email protected]PatchThird Party Advisory
https://github.com/crypto-org-chain/cronos/pull/270 [email protected]PatchThird Party Advisory

see all 6 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-670Always-Incorrect Control Flow Implementation[email protected]
CWE-670Always-Incorrect Control Flow Implementation[email protected]

Affected Products

ProductVersions
crypto cronos
< 0.6.5

CPE

  • cpe:2.3:a:crypto:cronos:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
crypto ethermint
< 0.7.3
>= 0.8.0, <= 0.9.0

CPE

  • cpe:2.3:a:crypto:ethermint:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
crypto evmos
<= 0.4.2

CPE

  • cpe:2.3:a:crypto:evmos:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

4 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2021-43839
NVD Published Date:
Dec 21, 2021
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2021-43839 Details - Not Deferred