CVE-2023-30837
vyper vulnerable to storage allocator overflow
7.5
HIGH
CVSS 3.1
EPSS 0.25%
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.
How to fix CVE-2023-30837
To remediate CVE-2023-30837, upgrade the affected package to a fixed version below.
- PyPI/vyper—upgrade to 0.3.8 or later
- —upgrade to 0bb7203b584e771b23536ba065a6efda457161bb or later
Is CVE-2023-30837 being exploited?
Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 0.3.8
- from 0, < 0bb7203b584e771b23536ba065a6efda457161bb | from 0, < 0.3.8
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N |
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |