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)
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.013 (69.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 70th percentile — 69.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000
Affected products
- Multiversx Mx-Chain-Go — versions < 1.4.17
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/multiversx/mx-chain-go/security/advisories/GHSA-j494-7x2v-vvvp (Vendor Advisory)
- github.com/multiversx/mx-chain-go/commit/babdb144f1316ab6176bf3dbd7d4621120414d… (Patch)
- github.com/multiversx/mx-chain-go/blob/babdb144f1316ab6176bf3dbd7d4621120414d43… (Product)
- github.com/multiversx/mx-chain-go/releases/tag/v1.4.17 (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.