Cloud Vulnerability DB
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Vulnerability DatabaseCVE-2023-42276
CVE-2023-42276:
Java vulnerability analysis and mitigation
Overview
A buffer overflow vulnerability was discovered in hutool v5.8.21 via the jsonArray component. The vulnerability was assigned CVE-2023-42276 and was publicly disclosed on September 8, 2023. The affected software is the hutool library version 5.8.21 and earlier versions (NVD, CVE).
Technical details
The vulnerability is classified as CWE-120 (Buffer Copy without Checking Size of Input) and received a CVSS v3.1 base score of 9.8 (CRITICAL) with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. The issue occurs in the JSONArray's add() method, where adding an element at a large index value can trigger an OutOfMemoryError due to unchecked buffer expansion (GitHub Issue, NVD).
Impact
The vulnerability can lead to Out of Memory errors when exploited, potentially causing denial of service conditions in applications using the affected hutool library. The CVSS score of 9.8 indicates critical severity with potential for high impact on confidentiality, integrity, and availability (NVD).
Mitigation and workarounds
Users should avoid using hutool versions 5.8.21 or earlier. The recommended action is to upgrade to a newer version of the package that contains the fix (FortiGuard).
Additional resources
Source: This report was generated using AI
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