CVE-2023-39332
Various `node:fs` functions allow specifying paths as either strings or `Uint8Array` objects.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.82%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Various `node:fs` functions allow specifying paths as either strings or `Uint8Array` objects. In Node.js environments, the `Buffer` class extends the `Uint8Array` class. Node.js prevents path traversal through strings (see CVE-2023-30584) and `Buffer` objects (see CVE-2023-32004), but not through non-`Buffer` `Uint8Array` objects. This is distinct from CVE-2023-32004 which only referred to `Buffer` objects. However, the vulnerability follows the same pattern using `Uint8Array` instead of `Buffer`. Please note that at the time this CVE was issued, the permission model is an experimental feature of Node.js.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.82% probability · 78th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-22
- Affected
- nodejs/node.js · fedoraproject/fedora
- Source
- support@hackerone.com
References
- https://hackerone.com/reports/2199818Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3N4NJ7FR4X4FPZUGNTQAPSTVB2HB2Y4A/Mailing List
- https://security.netapp.com/advisory/ntap-20231116-0009/Third Party Advisory
- https://hackerone.com/reports/2199818Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3N4NJ7FR4X4FPZUGNTQAPSTVB2HB2Y4A/Mailing List
- https://security.netapp.com/advisory/ntap-20231116-0009/Third Party Advisory
- https://security.netapp.com/advisory/ntap-20241108-0002/
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.