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CVE-2023-32058
Good to know:
Date: May 11, 2023
Vyper is a Pythonic smart contract language for the Ethereum virtual machine. Prior to version 0.3.8, due to missing overflow check for loop variables, by assigning the iterator of a loop to a variable, it is possible to overflow the type of the latter. The issue seems to happen only in loops of type "for i in range(a, a + N)" as in loops of type "for i in range(start, stop)" and "for i in range(stop)", the compiler is able to raise a "TypeMismatch" when trying to overflow the variable. The problem has been patched in version 0.3.8.
Language: Python
Severity Score
Related Resources (6)
Severity Score
Weakness Type (CWE)
Integer Overflow or Wraparound
CWE-190Top Fix
CVSS v3.1
| Base Score: |
|
|---|---|
| Attack Vector (AV): | NETWORK |
| Attack Complexity (AC): | LOW |
| Privileges Required (PR): | NONE |
| User Interaction (UI): | NONE |
| Scope (S): | UNCHANGED |
| Confidentiality (C): | NONE |
| Integrity (I): | NONE |
| Availability (A): | HIGH |