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CVE-2023-30837

nvd nist
Published: May 8, 2023Modified: Jun 17, 2026

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7.5
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Exploitability: 3.9 / Impact: 3.6
Source: NVD

Description

Vyper is a pythonic smart contract language for the EVM. The storage allocator does not guard against allocation overflows in versions prior to 0.3.8. An attacker can overwrite the owner variable. This issue was fixed in version 0.3.8.

Affected (1)

Products: Vyperlang: Vyper
Vyperlang
1 product
Vyper
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Vyper
Before 0.3.8

Related CWEs

CWE-789
Memory Allocation with Excessive Size Value
The product allocates memory based on an untrusted, large size value, but it does not ensure that the size is within expected limits, allowing arbitrary amounts of memory to be allocated.

References (4)

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

Timeline

No history available yet.