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linuxfoundation Edge Virtualization EngineFreely Allocate Buffer on The Stack With Data From Socket

Risk 82
Severity
9.9
AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Impact

VTPM server listens on port 8877, exposing limited TPM functionality. The server reads 4 bytes as a uint32 size header, then allocates that amount on the stack for incoming data. This allows Denial of Service attacks against the vTPM service.

An workload (a container or VM) running on EVE-OS can use this to generate a DOS against the vTPM service.

Patches

Fixed in 9.4.3-lts and 10.1.0

Workarounds

None

1 / 2
Source: GitHub
First published (updated )
CVE-2023-43632

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