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Use After Free

CVE-2021-46665

Severity Medium
Score 5.5/10

Summary

MariaDB through 10.2.42, 10.3.x through 10.3.33, 10.4.x through 10.4.23, 10.5.x through 10.5.14, 10.6.x through 10.6.6, 10.7.x through 10.7.2 and 10.8.1 allows a "sql_parse.cc" application crash because of incorrect "used_tables" expectations.

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