CVE-2022-39218

Katalog CVE

CVSS 7.5 · High EPSS 0,92%

Kerentanan Incorrect Usage of Seeds in Pseudo-Random Number Generator (PRNG) pada fastly js-compute. Skor CVSS 3.1 7.5 (High) menurut NVD.

Deskripsi (NVD)

The JS Compute Runtime for Fastly's Compute@Edge platform provides the environment JavaScript is executed in when using the Compute@Edge JavaScript SDK. In versions prior to 0.5.3, the `Math.random` and `crypto.getRandomValues` methods fail to use sufficiently random values. The initial value to seed the PRNG (pseudorandom number generator) is baked-in to the final WebAssembly module, making the sequence of random values for that specific WebAssembly module predictable. An attacker can use the fixed seed to predict random numbers generated by these functions and bypass cryptographic security controls, for example to disclose sensitive data encrypted by functions that use these generators. The problem has been patched in version 0.5.3. No known workarounds exist.

Rincian

Terbit di NVD

20 September 2022

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

7.5 (High), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-335: Incorrect Usage of Seeds in Pseudo-Random Number Generator (PRNG)

EPSS (30 hari)

0,92% peluang dieksploitasi; lebih tinggi dari 59,3% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/fastly/js-compute-runtime/security/advisories/GHSA-cmr8-5w4c-44v8 advisory pihak ketiga