Questions tagged [heap]

The tag has no usage guidance.

4 questions with no upvoted or accepted answers
Filter by
Sorted by
Tagged with
1
vote
0answers
48 views

How do I find Python data structures in Linux process memory using Volatility?

I have a Ubuntu 18.04 memory dump (entire RAM), and while I was acquiring it with LiME, I had a Python program running. Using Volatility, I want to recover its data structure values which are located ...
1
vote
0answers
124 views

Using the AND operator to find a heap allocation size, Fermin's formula

I came across this technique, leveraging the HPA feature (Heap Page Allocator, known as PageHeap) in gflags from Windows debugging tools, to find the size of a heap allocation: Lets say you have ...
0
votes
0answers
29 views

Missing Heap prev Size

I am currently working on a challenge and I think I have to exploit it using the House of Einherjar. I can create chunks on the heap, I can free them and I can overflow them, so everything I would ...
0
votes
0answers
72 views

dlmalloc free pointers

I was looking at the implementation of "free" in my current dlmalloc(both the source and the disassembly). However, I could not find the code section the inserts the FD and BK into free chunks. What ...