medium5.3
CVE-2023-42441
Vyper has incorrect re-entrancy lock when key is empty string
Impact
### Impact Locks of the type `@nonreentrant("")` or `@nonreentrant('')` do not produce reentrancy checks at runtime. ```Vyper @nonreentrant("") # unprotected @external def bar(): pass @nonreentrant("lock") # protected @external def foo(): pass ``` ### Patches Patched in #3605 ### Workarounds The lock name should be a non-empty string. ### References _Are there any links users can visit to find out more?_
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| pip | vyper | >= 0.2.9, < 0.3.10 | 0.3.10 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Vyperlang | Vyper | from 0.2.9 before 0.3.10 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/vyperlang/vyper/commit/0b740280c1e3c5528a20d47b29831948ddcc6d83
- https://github.com/vyperlang/vyper/pull/3605
- https://github.com/vyperlang/vyper/security/advisories/GHSA-3hg2-r75x-g69m
- https://github.com/advisories/GHSA-3hg2-r75x-g69m
- https://nvd.nist.gov/vuln/detail/CVE-2023-42441
- https://github.com/pypa/advisory-database/tree/main/vulns/vyper/PYSEC-2023-305.yaml