Skip to main content

Double Free

CVE-2016-5768

High
9.8/10

Summary

Double free vulnerability in the _php_mb_regex_ereg_replace_exec function in php_mbregex.c in the mbstring extension in PHP before 5.5.37, 5.6.x before 5.6.23, and 7.x before 7.0.8 allows remote attackers to execute arbitrary code or cause a denial of service (application crash) by leveraging a callback exception.

  • LOW
  • NETWORK
  • HIGH
  • UNCHANGED
  • NONE
  • NONE
  • HIGH
  • HIGH

CWE-415 - Double Free

The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations.

References

Advisory Timeline

  • Published