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Use After Free

CVE-2021-40566

Severity Medium
Score 5.5/10

Summary

A Segmentation fault caused by heap use after free vulnerability exists in Gpac prior to 2.0.0 via the "mpgviddmx_process" function in "reframe_mpgvid.c" when using mp4box, which causes a denial of service.

  • LOW
  • LOCAL
  • NONE
  • UNCHANGED
  • REQUIRED
  • NONE
  • NONE
  • 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