Vulnerability · Published Jun 26, 2024 · Assigned by GitHub_M

CVE-2024-38375@fastly/js-compute use-after-free in some host call implementations

Medium 5.3

In plain English

A medium-severity use-after-free in js-compute-runtime from fastly. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 19% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.3Medium
Exploit odds (30 days)0.3%top 81.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

@fastly/js-compute is a JavaScript SDK and runtime for building Fastly Compute applications. The implementation of several functions were determined to include a use-after-free bug. This bug could allow for unintended data loss if the result of the preceding functions were sent anywhere else, and often results in a guest trap causing services to return a 500. This bug has been fixed in version 3.16.0 of the `@fastly/js-compute` package.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
npm@fastly/js-compute3.16.0GHSA-mp3g-vpm9-9vqv

Affected products (as reported)

VendorProductVersions
fastly js-compute-runtime >= 3.0.0, < 3.16.0

Weakness: CWE-416 · Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:H

References