Freely Allocate Buffer on The Stack With Data From Socket

CVE-2023-43632

What is CVE-2023-43632?

The VTPM server in EVE poses a significant security risk through a stack overflow vulnerability. This server, which operates on port 8877, supports limited TPM functionality for clients. It accepts protobuf communications, where a malicious actor can exploit a flaw in memory allocation during a request handling process. By sending crafted data, an attacker manipulates the allocated stack size, leading to potential control over the high-privileged 'vtpm_server' process or even crashing the system, exposing serious implications for security and stability.

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References