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CVE-2023-39332

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 (report 2038134), which only referred to Buffer objects. However, the vulnerability follows the same pattern using Uint8Array instead of Buffer.

Impacts:

This vulnerability affects all users using the experimental permission model in Node.js 20.

Please note that at the time this CVE was issued, the permission model is an experimental feature of Node.js.

CVE
#vulnerability#nodejs#js

Related news

Red Hat Security Advisory 2023-7205-01

Red Hat Security Advisory 2023-7205-01 - An update for the nodejs:20 module is now available for Red Hat Enterprise Linux 8. Issues addressed include denial of service and traversal vulnerabilities.

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