CVE-2023-42460
Last modified
CVE-2023-42460 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 0.55% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Vyperlang | Vyper | >= 0.3.4, < 0.3.10 |
References
- https://github.com/vyperlang/vyper/security/advisories/GHSA-cx2q-hfxr-rj97Exploit, Patch, Third Party Advisory
- https://github.com/vyperlang/vyper/security/advisories/GHSA-cx2q-hfxr-rj97Exploit, Patch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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