Ecosyste.ms: Advisories

Security Advisories: GSA_kwCzR0hTQS0zaGcyLXI3NXgtZzY5bc4AA17W

Vyper has incorrect re-entrancy lock when key is empty string

Impact

Locks of the type @nonreentrant("") or @nonreentrant('') do not produce reentrancy checks at runtime.

@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?

Permalink: https://github.com/advisories/GHSA-3hg2-r75x-g69m
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS0zaGcyLXI3NXgtZzY5bc4AA17W
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Moderate
Classification: General
Published: about 1 year ago
Updated: about 1 year ago

CVSS Score: 5.3
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Identifiers: GHSA-3hg2-r75x-g69m, CVE-2023-42441
References:

• https://github.com/vyperlang/vyper/security/advisories/GHSA-3hg2-r75x-g69m
• https://github.com/vyperlang/vyper/pull/3605
• https://github.com/vyperlang/vyper/commit/0b740280c1e3c5528a20d47b29831948ddcc6d83
• https://nvd.nist.gov/vuln/detail/CVE-2023-42441
• https://github.com/advisories/GHSA-3hg2-r75x-g69m

Repository: https://github.com/vyperlang/vyper
Blast Radius: 12.6

Affected Packages