Moderate severityNVD Advisory· Published Feb 29, 2024· Updated Aug 2, 2024
OpenZeppelin Contracts base64 encoding may read from potentially dirty memory
CVE-2024-27094
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
@openzeppelin/contractsnpm | >= 4.5.0, < 4.9.6 | 4.9.6 |
@openzeppelin/contracts-upgradeablenpm | >= 5.0.0-rc.0, < 5.0.2 | 5.0.2 |
@openzeppelin/contractsnpm | >= 5.0.0-rc.0, < 5.0.2 | 5.0.2 |
@openzeppelin/contracts-upgradeablenpm | >= 4.5.0, < 4.9.6 | 4.9.6 |
Affected products
3- ghsa-coords2 versions
>= 4.5.0, < 4.9.6+ 1 more
- (no CPE)range: >= 4.5.0, < 4.9.6
- (no CPE)range: >= 5.0.0-rc.0, < 5.0.2
- Range: >= 4.5.0, < 4.9.6
Patches
Vulnerability mechanics
References
7- github.com/advisories/GHSA-9vx6-7xxf-x967ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2024-27094ghsaADVISORY
- github.com/OpenZeppelin/openzeppelin-contracts-upgradeable/commit/2d081f24cac1a867f6f73d512f2022e1fa987854ghsax_refsource_MISCWEB
- github.com/OpenZeppelin/openzeppelin-contracts-upgradeable/commit/723f8cab09cdae1aca9ec9cc1cfa040c2d4b06c1ghsax_refsource_MISCWEB
- github.com/OpenZeppelin/openzeppelin-contracts/commit/92224533b1263772b0774eec3134e132a3d7b2a6ghsax_refsource_MISCWEB
- github.com/OpenZeppelin/openzeppelin-contracts/commit/a6286d0fded8771b3a645e5813e51993c490399cghsax_refsource_MISCWEB
- github.com/OpenZeppelin/openzeppelin-contracts/security/advisories/GHSA-9vx6-7xxf-x967ghsax_refsource_CONFIRMWEB
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