AVR LIBC Freelist Poisoning

In this paper, I introduce the reader to a heap metadata corruption against the latest version of avr-libc. This allocator is used in embedded systems, Arduino, and the Internet of Things. In freelist poisoning, an attacker corrupts the chunk header of a free chunk. This chunk’s next pointer is modified to point to an arbitrary address. The data before this address is under the control of the attacker and represents the poisoned chunk size. The allocator, in a subsequent malloc, will return the poisoned chunk. In conjunction with program application logic, an arbitrary write may be achievable.

AVR LIBC Freelist Poisoning.PDF


  1. If you are struggling to piece together your academic assignments, then entrust the team of highly qualified custom writers at MyAssignmenthelp.com to get the job done for you at very affordable rates. The go-to stop for thousands of students, MyAssignmenthelp.com offers cheap essay writing services and academic paper help services for a variety of disciplines and specialisations. Providing cheap essay help on a write my essay Australia topic, the hire professional essay writers and paper writers at MyAssignmenthelp.com make sure that you get superb grades for all the assignments that you turn in.


Post a Comment

Popular posts from this blog

Linux Heap TCache Poisoning

Linux Heap glibc 2.27 Double Free Exploitation