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Numeric Errors

CVE-2008-2107

Severity High
Score 7.5/10

Summary

The GENERATE_SEED macro in PHP 4.x before 4.4.8 and 5.x before 5.2.5, when running on 32-bit systems, performs a multiplication using values that can produce a zero seed in rare circumstances, which allows context-dependent attackers to predict subsequent values of the rand and mt_rand functions and possibly bypass protection mechanisms that rely on an unknown initial seed.

  • LOW
  • NETWORK
  • NONE
  • PARTIAL
  • PARTIAL
  • PARTIAL

CWE-189 - Numeric Errors

Weaknesses in this category are related to improper calculation or conversion of numbers.

References

Advisory Timeline

  • Published