PT-2025-42487 · Quickjs+1 · Quickjs+1
Published
2025-10-16
·
Updated
2025-10-30
·
CVE-2025-62490
CVSS v3.1
8.8
High
| Vector | AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
quickjs (affected versions not specified)
Description
The software contains a flaw where side effects during object printing can lead to use-after-free conditions. Specifically, when printing arrays, the code retrieves the array length and then iterates. However, an attacker-defined callback could modify the array during the printing process, causing the iteration to access memory outside the array bounds. A similar issue exists when printing map or set objects, where elements can be removed from the underlying data structure during the printing process, leading to invalid memory access. The issue occurs because printing a value is not side-effect free, and callbacks can alter data structures while they are being processed.
Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Use After Free
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Weakness Enumeration
Related Identifiers
Affected Products
Debian
Quickjs