CVE-2023-32058

CVE-2023-32058, GHSA-6r8q-pfpv-7cgj

pypi/vyper

Integer Overflow or Wraparound

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.

All versions before 0.3.8

Upgrade to version 0.3.8 or above.

2023-05-15