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Security Advisories: MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLTdmOTItcnI2dy1jcTY0

Storage corruption due to variables overwritten by re-entrancy locks

Background

When attempting to use the v0.2.14 release, @pandadefi discovered an issue using the @nonreentrant decorator.

Impact

Reentrancy protection storage slots get allocated to the same slots as storage variables, leading to the corruption of storage variables when using the @nonreentrant decorator.

Patches

This issue was fixed in v0.2.15 in #2391, #2379

Workarounds

Don't use the @nonreentrant decorator in these versions.

Permalink: https://github.com/advisories/GHSA-7f92-rr6w-cq64
JSON: https://advisories.ecosyste.ms/api/v1/advisories/MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLTdmOTItcnI2dy1jcTY0
Source: GitHub Advisory Database
Origin: Unspecified
Severity: High
Classification: General
Published: over 2 years ago
Updated: over 1 year ago

Identifiers: GHSA-7f92-rr6w-cq64
References:

Repository: https://github.com/vyperlang/vyper
Blast Radius: 0.0

Affected Packages

pypi:vyper

Dependent packages: 3
Dependent repositories: 236
Downloads: 40,650 last month
Affected Version Ranges: >= 0.2.13, < 0.2.15
Fixed in: 0.2.15
All affected versions: 0.2.13, 0.2.14
All unaffected versions: 0.2.1, 0.2.2, 0.2.3, 0.2.4, 0.2.5, 0.2.6, 0.2.7, 0.2.8, 0.2.9, 0.2.10, 0.2.11, 0.2.12, 0.2.15, 0.2.16, 0.3.0, 0.3.1, 0.3.2, 0.3.3, 0.3.4, 0.3.5, 0.3.6, 0.3.7, 0.3.8, 0.3.9, 0.3.10