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Release of Invalid Pointer or Reference

CVE-2020-27798

Medium
5.5/10

Summary

An invalid memory address reference was discovered in the "adjABS" function in "p_lx_elf.cpp" in UPX before v3.99 via a crafted Mach-O file.

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

CWE-763 - Release of Invalid Pointer or Reference

The application attempts to return a memory resource to the system, but calls the wrong release function or calls the appropriate release function incorrectly.

References

Advisory Timeline

  • Published