PT-2021-23970 · Cronos · Cronos

Zb3 · Published 2021-12-21 · Updated 2022-01-06 · CVE-2021-43839

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Name of the Vulnerable Software and Affected Versions: Cronos versions prior to v0.6.5

Description: The issue allows an attacker to take transaction fees from Cosmos SDK's FeeCollector for the current block by sending a custom crafted MsgEthereumTx. User funds and balances are safe.

Recommendations: For Cronos versions prior to v0.6.5, upgrade to Cronos v0.6.5 at the earliest possible convenience.

Fix

Weakness Enumeration

CWE-670

Related Identifiers

CVE-2021-43839

GHSA-F854-HPXV-CW9R

Affected Products

Cronos

References · 7

• https://github.com/crypto-org-chain/cronos/pull/270 · Patch
• https://github.com/crypto-org-chain/cronos/commit/150ef237b37ac28c8136e1c0f494932860b9ebe8 · Patch
• https://osv.dev/vulnerability/CVE-2021-43839 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-43839 · Security Note
• https://osv.dev/vulnerability/GHSA-f854-hpxv-cw9r · Vendor Advisory
• https://github.com/crypto-org-chain/cronos/security/advisories/GHSA-f854-hpxv-cw9r · Note
• https://github.com/crypto-org-chain/cronos · Note