What is CVE-2023-23940?

CVE-2023-23940 is a medium-severity vulnerability in Openzeppelin Cairo-contracts, classified under Improper Verification of Cryptographic Signature. CVSS score: 6.4/10. Published 2023-02-03.

How severe is CVE-2023-23940?

Medium severity. CVSS v3 base score is 6.4 out of 10.

Vulnerability in Openzeppelin Cairo-contracts

CVE-2023-23940

OpenZeppelin Contracts for Cairo is a library for secure smart contract development written in Cairo for StarkNet, a decentralized ZK Rollup. `is_valid_eth_signature` is missing a call to `finalize_keccak` after calling `verify_eth_signatu…

EPSS: 0.001 (18.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:L.

Affected products

Openzeppelin Cairo-contracts — versions >= 0.2.0, < 0.6.1

Weakness classification (CWE)

References

https://github.com/OpenZeppelin/cairo-contracts/security/advisories/GHSA-626q-v9j4-mcp4 (x_refsource_CONFIRM)
https://github.com/OpenZeppelin/cairo-contracts/pull/542/commits/6d4cb750478fca2fd916f73297632f899aca9299 (x_refsource_MISC)

Frequently asked questions

What is CVE-2023-23940?: CVE-2023-23940 is a medium-severity vulnerability in Openzeppelin Cairo-contracts, classified under Improper Verification of Cryptographic Signature. CVSS score: 6.4/10. Published 2023-02-03.
How severe is CVE-2023-23940?: Medium severity. CVSS v3 base score is 6.4 out of 10.