ghsa-3hg2-r75x-g69m
Vulnerability from github
Published
2023-09-18 19:20
Modified
2023-09-21 14:17
Severity ?
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Summary
Vyper has incorrect re-entrancy lock when key is empty string
Details

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?

Show details on source website

To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "vyper"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.2.9"
            },
            {
              "fixed": "0.3.10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-42441"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-667",
      "CWE-833"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-09-18T19:20:55Z",
    "nvd_published_at": "2023-09-18T21:16:09Z",
    "severity": "MODERATE"
  },
  "details": "### Impact\n\nLocks of the type `@nonreentrant(\"\")` or `@nonreentrant(\u0027\u0027)` do not produce reentrancy checks at runtime.\n\n```Vyper\n@nonreentrant(\"\") # unprotected\n@external\ndef bar():\n    pass\n\n@nonreentrant(\"lock\") # protected\n@external\ndef foo():\n    pass\n```\n### Patches\n\nPatched in #3605\n\n### Workarounds\n\nThe lock name should be a non-empty string.\n\n### References\n_Are there any links users can visit to find out more?_\n",
  "id": "GHSA-3hg2-r75x-g69m",
  "modified": "2023-09-21T14:17:11Z",
  "published": "2023-09-18T19:20:55Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/vyperlang/vyper/security/advisories/GHSA-3hg2-r75x-g69m"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-42441"
    },
    {
      "type": "WEB",
      "url": "https://github.com/vyperlang/vyper/pull/3605"
    },
    {
      "type": "WEB",
      "url": "https://github.com/vyperlang/vyper/commit/0b740280c1e3c5528a20d47b29831948ddcc6d83"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/vyperlang/vyper"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Vyper has incorrect re-entrancy lock when key is empty string"
}


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