CVE-2024-27094mediumCWE-125

CVE-2024-27094: medium-severity vulnerability in openzeppelin-contracts

OpenZeppelin Contracts base64 encoding may read from potentially dirty memory

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13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 6.5epss 0.8%
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.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H
Affected products
OpenZeppelin · openzeppelin-contracts
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