@fastly/js-compute has a use-after-free in some host call implementations

TRUNG BÌNH 5.3CVE-2024-38375 · GHSA-mp3g-vpm9-9vqv · Công bố 26/06/2024 · cập nhật 17/06/2026

Tóm tắt nhanh

CVE-2024-38375 là lỗ hổng mức TRUNG BÌNH (CVSS 5.3) ảnh hưởng @fastly/js-compute.
Xác suất bị khai thác trong 30 ngày tới (EPSS): 0.27%, cao hơn 18.6% các lỗ hổng khác.
Cách xử lý: cập nhật lên 3.16.0 hoặc mới hơn.

Gói / sản phẩm	Phiên bản bị ảnh hưởng	Phiên bản đã vá
@fastly/js-compute npm	`≥ 3.0.0, < 3.16.0`	`3.16.0`

Mô tả

Impact

The implementation of the following functions were determined to include a use-after-free bug:

FetchEvent.client.tlsCipherOpensslName
FetchEvent.client.tlsProtocol
FetchEvent.client.tlsClientCertificate
FetchEvent.client.tlsJA3MD5
FetchEvent.client.tlsClientHello
CacheEntry.prototype.userMetadata of the fastly:cache subsystem
Device.lookup of the fastly:device subsystem

This bug could allow for an unintended data leak if the result of the preceding functions were sent anywhere else, and often results in a Compute service crash causing an HTTP 500 error to be returned. As all requests to Compute are isolated from one another, the only data at risk is data present for a single request.

Patches

This bug has been fixed in version 3.16.0 of the @fastly/js-compute package.

Workarounds

There are no workarounds for this bug, any use of the affected functions introduces the possibility of a data leak or crash in guest code.

Mô tả của NVD

@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.