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Out-of-bounds Write

CVE-2021-25518

Medium
6.7/10

Summary

An improper boundary check in secure_log of LDFW and BL31 prior to SMR Dec-2021 Release 1 allows arbitrary memory write and code execution.

  • LOW
  • LOCAL
  • HIGH
  • UNCHANGED
  • NONE
  • HIGH
  • HIGH
  • HIGH

CWE-787 - Out-of-Bounds Write

Out-of-bounds write vulnerability is a memory access bug that allows software to write data past the end or before the beginning of the intended buffer. This may result in the corruption of data, a crash, or arbitrary code execution.

References

Advisory Timeline

  • Published