CVE-2023-43632

As noted in the VTPM.md file in the eve documentation, VTPM is a server listening on port
8877 in EVE, exposing limited functionality of the TPM to the clients. 
VTPM allows clients to
execute tpm2-tools binaries from a list of hardcoded options
The communication with this server is done using protobuf, and the data is comprised of 2
parts:

1. Header

2. Data

When a connection is made, the server is waiting for 4 bytes of data, which will be the header,
and these 4 bytes would be parsed as uint32 size of the actual data to come.

Then, in the function handleRequest this size is then used in order to allocate a payload on
the stack for the incoming data.

As this payload is allocated on the stack, this will allow overflowing the stack size allocated for
the relevant process with freely controlled data.

* An attacker can crash the system. 
* An attacker can gain control over the system, specifically on the vtpm_server process
which has very high privileges.


ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
9 CRITICAL
ADJACENT_NETWORK
LOW
LOW
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
ASRGCNA
9 CRITICAL
ADJACENT_NETWORK
LOW
LOW
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CVEADP
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CISA-ADPADP
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