FastDDS has Out-of-memory in readOctetVector via Manipulated DATA Submessage when DDS Security is enabled

Fast DDS is a C++ implementation of the DDS (Data Distribution Service) standard of the OMG (Object Management Group ). Prior to versions 3.4.1, 3.3.1, and 2.6.11, when the security mode is enabled, modifying the DATA Submessage within an SPDP packet sent by a publisher causes an Out-Of-Memory (OOM) condition, resulting in remote termination of Fast-DDS. If t he fields of `PID_IDENTITY_TOKEN` or `PID_PERMISSIONS_TOKEN` in the DATA Submessage are tampered with — specifically by ta mpering with the the `vecsize` value read by `readOctetVector` — a 32-bit integer overflow can occur, causing `std::vector ::resize` to request an attacker-controlled size and quickly trigger OOM and remote process termination. Versions 3.4.1, 3 .3.1, and 2.6.11 patch the issue.

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跨界内存读

Fast-DDS 输入验证错误漏洞

Fast-DDS是eProsima开源的一个完整的DDS系统。 Fast-DDS 3.4.1之前版本、3.3.1之前版本和2.6.11之前版本存在输入验证错误漏洞，该漏洞源于修改DATA子消息中的PID_IDENTITY_TOKEN或PID_PERMISSIONS_TOKEN字段导致整数溢出，可能引发内存耗尽和远程进程终止。

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