CVE-2024-26149

Vyper _abi_decode Memory Overflow

State: Published
Severity: 3.7 Low
Published: Feb 26, 2024
Updated: Aug 22, 2024
Reserved: Feb 14, 2024

Description

Vyper is a pythonic Smart Contract Language for the ethereum virtual machine. If an excessively large value is specified as the starting index for an array in `_abi_decode`, it can cause the read position to overflow. This results in the decoding of values outside the intended array bounds, potentially leading to exploitations in contracts that use arrays within `_abi_decode`. This vulnerability affects 0.3.10 and earlier versions.

Scores

CVSS	Score	Vector	Source
3.1	3.7 Low	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N	GitHub_M

Weaknesses

CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

Affected Products

Product	Versions
vypervyperlang	<= 0.3.10Affected

References

https://github.com/vyperlang/vyper/security/advisories/GHSA-9p8r-4xp4-gw5w

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