high7.5
CVE-2022-24787
Vyper is a Pythonic Smart Contract Language for the Ethereum Virtual Machine.
Impact
Vyper is a Pythonic Smart Contract Language for the Ethereum Virtual Machine. In version 0.3.1 and prior, bytestrings can have dirty bytes in them, resulting in the word-for-word comparisons giving incorrect results. Even without dirty nonzero bytes, two bytestrings can compare to equal if one ends with `"\x00"` because there is no comparison of the length. A patch is available and expected to be part of the 0.3.2 release. There are currently no known workarounds.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Vyperlang | Vyper | through 0.3.1 |
Weakness classification
References
- NVD record
- CVE.org record
- https://github.com/vyperlang/vyper/commit/2c73f8352635c0a433423a5b94740de1a118e508
- https://github.com/vyperlang/vyper/security/advisories/GHSA-7vrm-3jc8-5wwm
- https://github.com/vyperlang/vyper/commit/2c73f8352635c0a433423a5b94740de1a118e508
- https://github.com/vyperlang/vyper/security/advisories/GHSA-7vrm-3jc8-5wwm