Medium severity · published Jun 26, 2024
CVE-2024-38375
@fastly/js-compute use-after-free in some host call implementations
5.3
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:H
Attack vector
Network
Complexity
High
Privileges
High
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 18% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
JS
js-compute-runtime · fastly
>= 3.0.0, < 3.16.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-38375
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-38375
github.com
https://github.com/fastly/js-compute-runtime/commit/4e16641ef4e159c4a11b500ac861b8fa8d9ff5d3
github.com
https://github.com/fastly/js-compute-runtime/security/advisories/GHSA-mp3g-vpm9-9vqv