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Defending C Applications Against Use After Free
Use After Free vulnerabilities arise when memory is deallocated before being accessed by unmanaged code. Attackers might exploit these holes to run wild codes, leading to many problems, such as crashing the system. Thus, resetting the pointers as null upon freeing their linked memory is necessary. Consequently, it is also essential to check for null pointers before using them in case they could be pointing at random locations in the system memory. This Defending C Applications Against Use After Free Skill Lab offers a virtual environment that includes a vulnerable application and its complete source code to train developers on identifying and addressing Use After Free vulnerabilities.
Course Overview
Learning Objectives
After completing this lab, the learner will understand how to defend C applications against Use After Free vulnerabilities by receiving hands-on experience testing for these vulnerabilities and implementing suitable mitigations.
Framework Connections
The materials within this course focus on the NICE Framework Task, Knowledge, and Skill statements identified within the indicated NICE Framework component(s):
Competency Areas
Work Roles
Feedback
If you would like to provide feedback on this course, please e-mail the NICCS team at NICCS@mail.cisa.dhs.gov. Please keep in mind that NICCS does not own this course or accept payment for course entry. If you have questions related to the details of this course, such as cost, prerequisites, how to register, etc., please contact the course training provider directly. You can find course training provider contact information by following the link that says “Visit course page for more information...” on this page.