Skip to main content

Use After Free

CVE-2022-25139

Severity High
Score 7.5/10

Summary

njs through 0.7.0, used in NGINX, was discovered to contain a heap use-after-free in njs_await_fulfilled.

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

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.

References

Advisory Timeline

  • Published