Description (CNA)
Vyper 0.1.0b1 before 0.1.0b12, 0.1.0b14, and 0.4.1 through 0.5.0b1 mix character-based line offsets with Python's UTF-8 byte col_offset values in vyper/ast/parse.py, so multi-byte characters shift the source slices used to reconstruct later numeric literals. An attacker contributing source with non-ASCII identifiers that NFKC-normalize to ASCII, or an invisible byte-order mark, can silently substitute addresses, integers or other constants in compiled code.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| vyperlang / vyper | affected 0.1.0b1 before 0.1.0b12; unaffected 0.1.0b12 |
| vyperlang / vyper | affected 0.1.0b14 before 0.1.0b15; unaffected 0.1.0b15 |
| vyperlang / vyper | affected 0.4.1 through 0.5.0b1 |
CWE
CWE-176