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CVE-2024-27094

nvd nist
Published: Mar 21, 2024Modified: Jun 17, 2026

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7.4
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H
Exploitability: 2.2 / Impact: 5.2
Source: NVD

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.

Affected (4)

Openzeppelin
2 products
Contracts
Contracts Upgradeable
Configuration A
4 vulnerable
Vulnerable SoftwareAffected Versions
Openzeppelin
Contracts
From 4.5.0 to 4.9.6
Contracts
From 5.0.0 to 5.0.2
Openzeppelin
Contracts Upgradeable
From 4.5.0 to 4.9.6
Contracts Upgradeable
From 5.0.0 to 5.0.2

Related CWEs

CWE-125
Out-of-bounds Read
The product reads data past the end, or before the beginning, of the intended buffer.

References (10)

Source: security-advisories@github.com
Patch
Source: security-advisories@github.com
Patch
Source: security-advisories@github.com
Patch
Source: security-advisories@github.com
Patch
Source: security-advisories@github.com
Vendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Patch
Source: af854a3a-2127-422b-91ae-364da2661108
Patch
Source: af854a3a-2127-422b-91ae-364da2661108
Patch
Source: af854a3a-2127-422b-91ae-364da2661108
Patch
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory

Timeline

No history available yet.