GHSA-3hg2-r75x-g69m
Vyper has incorrect re-entrancy lock when key is empty string
Packages
Details
As written in the advisory (Markdown source, shown as plain text).
### 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?_
References
External links from the advisory. They lead to third-party sites.
- https://github.com/vyperlang/vyper/security/advisories/GHSA-3hg2-r75x-g69m
- https://nvd.nist.gov/vuln/detail/CVE-2023-42441
- https://github.com/vyperlang/vyper/pull/3605
- https://github.com/vyperlang/vyper/commit/0b740280c1e3c5528a20d47b29831948ddcc6d83
- https://github.com/pypa/advisory-database/tree/main/vulns/vyper/PYSEC-2023-305.yaml
- https://github.com/vyperlang/vyper