CVE-2024-38375 @fastly/js-compute use-after-free in some host call implementations
A use-after-free bug in the Fastly JS Compute SDK can cause service crashes and potential data loss, requiring an upgrade to the latest version.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2024-38375?
CVE-2024-38375 is a medium-severity use after free vulnerability in fastly js-compute-runtime, published on 26 Jun 2024. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
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.
Weakness: CWE-416
Which versions are affected by CVE-2024-38375?
2 open source packages ship an affected version, including @fastly/js-compute.
| Package | Affected | Fixed in |
|---|---|---|
@fastly/js-compute npm | From 3.0.0 | 3.16.0 |
@fastly/js-compute npm | From 3.0.0 | 3.16.0 |
How do I fix CVE-2024-38375?
Upgrade @fastly/js-compute to 3.16.0 or later.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2024-38375 being exploited?
There is no known exploitation of CVE-2024-38375 in the wild and no public exploit code.
Sources
Also known as GHSA-mp3g-vpm9-9vqv.