CVE-2023-42460 (GCVE-0-2023-42460)

Vulnerability from cvelistv5 – Published: 2023-09-26 18:47 – Updated: 2024-09-24 13:45
VLAI
Title
_abi_decode input not validated in complex expressions in Vyper
Summary
Vyper is a Pythonic Smart Contract Language for the EVM. The `_abi_decode()` function does not validate input when it is nested in an expression. Uses of `_abi_decode()` can be constructed which allow for bounds checking to be bypassed resulting in incorrect results. This issue has not yet been fixed, but a fix is expected in release `0.3.10`. Users are advised to reference pull request #3626.
Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-24 13:20 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
vyperlang vyper Affected: >= 0.3.4, < 0.3.10
guessed Create a notification for this product.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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