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Integer Overflow or Wraparound

CVE-2021-30022

Severity Medium
Score 5.5/10

Summary

There is an integer overflow in "media_tools/av_parsers.c" in the "gf_avc_read_pps_bs_internal" in GPAC through 1.0.1. "pps_id" may be a negative number, so it will not return. However, "avc->pps" only has 255 unit, so there is an overflow, which results a crash.

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

CWE-190 - Integer Overflow or Wraparound

The software performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control.

Advisory Timeline

  • Published