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Access of Uninitialized Pointer

CVE-2009-0040

Medium
6.8/10

Summary

The PNG reference library (aka libpng) before 1.0.43, and 1.2.x before 1.2.35, as used in pngcrush and other applications, allows context-dependent attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted PNG file that triggers a free of an uninitialized pointer in (1) the png_read_png function, (2) pCAL chunk handling, or (3) setup of 16-bit gamma tables.

  • MEDIUM
  • NETWORK
  • NONE
  • PARTIAL
  • PARTIAL
  • PARTIAL

CWE-824 - Access of Uninitialized Pointer

The program accesses or uses a pointer that has not been initialized.

References

Advisory Timeline

  • Published