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Use of Uninitialized Resource

CVE-2021-1104

High
9.8/10

Summary

The RISC-V Instruction Set Manual contains a documented ambiguity for the Machine Trap Vector Base Address (MTVEC) register that may lead to a vulnerability due to the initial state of the register not being defined, potentially leading to information disclosure, data tampering and denial of service.

  • LOW
  • NETWORK
  • HIGH
  • UNCHANGED
  • NONE
  • NONE
  • HIGH
  • HIGH

CWE-908 - Use of Uninitialized Resource

The software uses or accesses a resource that has not been initialized.

References

Advisory Timeline

  • Published