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Use After Free


Severity High
Score 8.8/10


A flaw was found in the QEMU implementation of VMWare's paravirtual RDMA device. This flaw allows a crafted guest driver to execute "HW" commands when shared buffers are not yet allocated, potentially leading to a Use-After-Free condition. This vulnerability affects qemu versions prior to 8.0.0-rc0.

  • LOW
  • HIGH
  • NONE
  • LOW
  • HIGH
  • HIGH

CWE-416 - Use After Free

Use-after-free (UaF) vulnerability occurs when the application is using a pointer to memory that has been freed. Any attempt to read/write to a buffer after it is de-allocated allows memory corruption, sensitive information exposure, and can potentially lead to arbitrary code execution.

Advisory Timeline

  • Published