Vyper is a Pythonic smart contract language for the Ethereum virtual machine. Prior to version 0.3.8, during codegen, the length word of a dynarray is written before the data, which can result in out-of-bounds array access in the case where the dynarray is on both the lhs and rhs of an assignment. The issue can cause data corruption across call frames. The expected behavior is to revert due to out-of-bounds array access. Version 0.3.8 contains a patch for this issue.
Metrics
Affected Vendors & Products
Advisories
| Source | ID | Title |
|---|---|---|
 EUVD |
EUVD-2023-0270 | Vyper is a Pythonic smart contract language for the Ethereum virtual machine. Prior to version 0.3.8, during codegen, the length word of a dynarray is written before the data, which can result in out-of-bounds array access in the case where the dynarray is on both the lhs and rhs of an assignment. The issue can cause data corruption across call frames. The expected behavior is to revert due to out-of-bounds array access. Version 0.3.8 contains a patch for this issue. |
 Github GHSA |
GHSA-3p37-3636-q8wv | Vyper vulnerable to OOB DynArray access when array is on both LHS and RHS of an assignment |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Fri, 24 Jan 2025 16:15:00 +0000
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Projects
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MITRE
Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2025-01-24T16:02:08.702Z
Reserved: 2023-04-24T21:44:10.418Z
Link: CVE-2023-31146
Vulnrichment
Updated: 2024-08-02T14:45:25.685Z
NVD
Status : Modified
Published: 2023-05-11T21:15:10.240
Modified: 2025-01-24T16:15:32.803
Link: CVE-2023-31146
Redhat
No data.
OpenCVE Enrichment
No data.
Weaknesses