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CWE-237 (结构体元素处理不恰当) — Vulnerability Class 3

3 vulnerabilities classified as CWE-237 (结构体元素处理不恰当). AI Chinese analysis included.

CWE-237 represents a structural handling weakness where software fails to properly manage inputs associated with complex data structures, such as nested objects or hierarchical formats. Attackers typically exploit this vulnerability by crafting malformed or deeply nested inputs that trigger unexpected behavior, leading to crashes, memory corruption, or logic bypasses. This often occurs when developers assume input structures are well-formed or fail to validate the integrity of nested elements before processing. To mitigate this risk, developers must implement rigorous input validation that explicitly checks the structure, depth, and type of incoming data. Utilizing robust parsing libraries that enforce strict schema compliance and employing defensive programming techniques, such as limiting recursion depth or rejecting unexpected structural anomalies, ensures that the application remains resilient against malformed inputs and prevents exploitation of these structural flaws.

MITRE CWE Description
The product does not handle or incorrectly handles inputs that are related to complex structures.
Common Consequences (1)
IntegrityUnexpected State
Examples (1)
In the following C/C++ example the method processMessageFromSocket() will get a message from a socket, placed into a buffer, and will parse the contents of the buffer into a structure that contains the message length and the message body. A for loop is used to copy the message body into a local character string which will be passed to another method for processing.
int processMessageFromSocket(int socket) { int success; char buffer[BUFFER_SIZE]; char message[MESSAGE_SIZE]; // get message from socket and store into buffer //Ignoring possibliity that buffer > BUFFER_SIZE if (getMessage(socket, buffer, BUFFER_SIZE) > 0) { // place contents of the buffer into message structure ExMessage *msg = recastBuffer(buffer); // copy message body into string for processing int index; for (index = 0; index < msg->msgLength; index++) { message[index] = msg->msgBody[index]; } message[index] = '\0'; // process message success = processMessage(message); } return success; }
Bad · C
CVE IDTitleCVSSSeverityPublished
CVE-2025-24336 SXF Common Library 安全漏洞 — SXF Common Library 6.5 -2025-01-31
CVE-2023-6110 Openstack: deleting a non existing access rule deletes another existing access rule in it's scope — Red Hat OpenStack Platform 17.1 for RHEL 8 5.5 Medium2024-11-17
CVE-2023-34429 Weintek Weincloud Improper Handling of Structural Elements — Weincloud 7.5 High2023-07-19

Vulnerabilities classified as CWE-237 (结构体元素处理不恰当) represent 3 CVEs. The CWE taxonomy describes the weakness; review individual CVEs for product-specific impact.