🚀 Submit a Challenge — SecDim AppSec Village CTF at DEF CON 34 and Win a ROG Xbox Ally

Dangling Pointer

Refers to a memory corruption vulnerability that occurs when a pointer continues to point to a memory location after it has been freed (deallocated or released).

Remediation:

  • When freeing pointers, be sure to set them to NULL once they are freed.
  • However, multiple or complex data structures may lower the usefulness of this strategy.

Metadata

  • Severity: medium
  • Slug: dangling-pointer

CWEs

  • 416: Use After Free

Available Labs

Select a language to explore available labs for this vulnerability.

No matching labs found

Try adjusting your language filter.

Try it yourself

Find, Hack and Fix Your First Vulnerability

Reading about security bugs is one thing — fixing one is how the skill sticks. Play a free challenge from the wargame, no setup required.