Out-of-bounds Read in Openzeppelin Contracts
CVE-2024-27094
OpenZeppelin Contracts is a library for secure smart contract development. The `Base64.encode` function encodes a `bytes` input by iterating over it in chunks of 3 bytes. When this input is not a multiple of 3, the last iteration may read…
Vulnerability class: Buffer Overflow
EPSS: 0.008 (50.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H.
Affected products
- Openzeppelin Contracts
- Openzeppelin Contracts_upgradeable
- Openzeppelin Openzeppelin-contracts — versions >= 4.5.0, < 4.9.6, >= 5.0.0-rc.0, < 5.0.2
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 (Patch, x_refsource_MISC)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Patch, x_refsource_MISC)
Frequently asked questions
- What is CVE-2024-27094?
- CVE-2024-27094 is a medium-severity vulnerability in Openzeppelin Contracts, classified under Out-of-bounds Read. CVSS score: 6.5/10. Published 2024-03-21.
- How severe is CVE-2024-27094?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2024-27094 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.