Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG) Affecting nodejs package, versions <16.17.1-r0


Severity

Recommended
0.0
critical
0
10

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Threat Intelligence

EPSS
0.18% (57th percentile)

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  • Snyk IDSNYK-ALPINE315-NODEJS-3041940
  • published25 Sept 2022
  • disclosed5 Dec 2022

Introduced: 25 Sep 2022

CVE-2022-35255  (opens in a new tab)
CWE-338  (opens in a new tab)

How to fix?

Upgrade Alpine:3.15 nodejs to version 16.17.1-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream nodejs package and not the nodejs package as distributed by Alpine. See How to fix? for Alpine:3.15 relevant fixed versions and status.

A weak randomness in WebCrypto keygen vulnerability exists in Node.js 18 due to a change with EntropySource() in SecretKeyGenTraits::DoKeyGen() in src/crypto/crypto_keygen.cc. There are two problems with this: 1) It does not check the return value, it assumes EntropySource() always succeeds, but it can (and sometimes will) fail. 2) The random data returned byEntropySource() may not be cryptographically strong and therefore not suitable as keying material.

CVSS Scores

version 3.1