Apache NuttX RTOS: examples/xmlrpc: Fix calls buffers size.

Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability was discovered in Apache NuttX RTOS apps/exapmles/xmlrpc application. In this example application device stats structure that stored remotely provided parameters had hardcoded buffer size which could lead to buffer overflow. Structure members buffers were updated to valid size of CONFIG_XMLRPC_STRINGSIZE+1. This issue affects Apache NuttX RTOS users that may have used or base their code on example application as presented in releases from 6.22 before 12.9.0. Users of XMLRPC in Apache NuttX RTOS are advised to review their code for this pattern and update buffer sizes as presented in the version of the example in release 12.9.0.

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内存缓冲区边界内操作的限制不恰当

Apache NuttX 安全漏洞

Apache NuttX是美国阿帕奇（Apache）基金会的一套实时嵌入式操作系统。 Apache NuttX 6.22至12.9.0之前版本存在安全漏洞，该漏洞源于内存缓冲区操作不当，可能导致缓冲区溢出。

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