OpenZeppelin Contracts base64 encoding may read from potentially dirty memory (OpenZeppelin openzeppelin-contracts)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.76 % · percentile 55 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- GitHub_M
- NVD status
- Analyzed
Description
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 parts of the memory that are beyond the input buffer. The vulnerability is fixed in 5.0.2 and 4.9.6.
Weaknesses (CWE)
- CWE-125 — Out-of-bounds Read
References
- https://github.com/OpenZeppelin/openzeppelin-contracts/security/advisories/GHSA-9vx6-7xxf-x967
- https://github.com/OpenZeppelin/openzeppelin-contracts-upgradeable/commit/2d081f24cac1a867f6f73d512f2022e1fa987854
- https://github.com/OpenZeppelin/openzeppelin-contracts-upgradeable/commit/723f8cab09cdae1aca9ec9cc1cfa040c2d4b06c1
- https://github.com/OpenZeppelin/openzeppelin-contracts/commit/92224533b1263772b0774eec3134e132a3d7b2a6
- https://github.com/OpenZeppelin/openzeppelin-contracts/commit/a6286d0fded8771b3a645e5813e51993c490399c
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 6.5 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H | GitHub_M |
| CVSS 3.1 | MEDIUM 6.5 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H | NVD · security-advisories@github.com (Secondary) |
| CVSS 3.1 | HIGH 7.4 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H | NVD · nvd@nist.gov (Primary) |
Advisories
- GHSA-9vx6-7xxf-x967 — OpenZeppelin Contracts base64 encoding may read from potentially dirty memory
European references
- ENISA EUVD · EUVD-2024-0602
- GCVE · GCVE-0-2024-27094
Affected configurations (NVD CPE)
cpe:2.3:a:openzeppelin:contracts:*:*:*:*:*:node.js:*:*≥ 4.5.0 < 4.9.6cpe:2.3:a:openzeppelin:contracts:*:*:*:*:*:node.js:*:*≥ 5.0.0 < 5.0.2cpe:2.3:a:openzeppelin:contracts_upgradeable:*:*:*:*:*:node.js:*:*≥ 4.5.0 ≤ 4.9.6cpe:2.3:a:openzeppelin:contracts_upgradeable:*:*:*:*:*:node.js:*:*≥ 5.0.0 < 5.0.2
Affected products
| Product | Versions |
|---|---|
| OpenZeppelin · openzeppelin-contracts | affected >= 4.5.0, < 4.9.6 ; affected >= 5.0.0-rc.0, < 5.0.2 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |