Resource exhaustion in Multiversx Mx-Chain-Go
CVE-2023-34458
mx-chain-go is the official implementation of the MultiversX blockchain protocol, written in golang. When executing a relayed transaction, if the inner transaction failed, it would have increased the inner transaction's sender account nonce. This could have contributed to a limited DoS attack on a targeted account. The fix is a breaking change so a new flag `RelayedNonceFixEnableEpoch` was needed. This was a strict processing issue while validating blocks on a chain. This vulnerability has been patched in version 1.4.17.
Vulnerability class: DoS (Denial of Service)
EPSS: 0.013 (67.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:H.
Affected products
- Multiversx Mx-chain-go — versions < 1.4.17
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Product, x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC, Release Notes)
Frequently asked questions
- What is CVE-2023-34458?
- CVE-2023-34458 is a high-severity vulnerability in Multiversx Mx-Chain-Go, classified under Uncontrolled Resource Consumption. CVSS score: 7.1/10. Published 2023-07-13.
- How severe is CVE-2023-34458?
- High severity. CVSS v3 base score is 7.1 out of 10.
- Is CVE-2023-34458 known to be exploited?
- 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.