Tagged Questions
1
vote
1answer
186 views
Determining the target address in a heap overflow
For a heap overflow to occur and arbitrary code to be executed, the function free() performs the step :
hdr->next->next->prev = hdr->next->prev
I understand that the address of ...
10
votes
2answers
193 views
security implications of NULL dereference
Suppose we have code like this:
struct somedata {
int a;
int b;
};
struct somedata *data;
/* ... */
data = malloc(sizeof(struct somedata));
data->a = something;
Now, as you can see, NULL ...
