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Out-of-bounds Write

CVE-2024-45782

High
7.8/10

Summary

A flaw was found in the HFS filesystem. When reading an HFS volume's name at "grub_fs_mount()", the HFS filesystem driver performs a "strcpy()" using the user-provided volume name as input without properly validating the volume name's length. This issue may read to a heap-based out-of-bounds writer, impacting grub's sensitive data integrity and eventually leading to a secure boot protection bypass. This issue affects grub2 versions 1.98 and after.

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