Quicksort bug

Any ideas, what may be the possible bug in the following code:

1: public static int binarySearch(int[] a, int key) {
2: int low = 0;
3: int high = a.length - 1;
4:
5: while (low <= high) {
6: int mid = (low + high) / 2;
7: int midVal = a[mid];
8:
9: if (midVal < key)
10: low = mid + 1;
11: else if (midVal > key)
12: high = mid - 1;
13: else
14: return mid; // key found
15: }
16: return -(low + 1); // key not found.
17: }

Note: It is standard algo implemented in Java to sort ArrayList

Regards,
Sandeep

SIX DUMBEST IDEAS IN COMPUTER SECURITY.

http://www.ranum.com/security/computer_security/editorials/dumb/

Simple Yet Common Again

int catvars(char *buf1, char *buf2, unsigned int len1,
unsigned int len2){
char mybuf[256];

if((len1 + len2) > 256){
return -1;
}

memcpy(mybuf, buf1, len1);
memcpy(mybuf + len1, buf2, len2);

do_some_stuff(mybuf);

return 0;
}

Simple Yet Common

int myfunction(int *array, int len){
int *myarray, i;

myarray = malloc(len * sizeof(int));
if(myarray == NULL){
return -1;
}

for(i = 0; i < len; i++){
myarray[i] = array[i];
}

return myarray;
}

Spot the bug

Microsoft's guy is also hosting a blog where he will be posting the code and you have to find a bug.
Check this out: http://blogs.msdn.com/rsamona/

Thanks
Sandeep

Games

Ever played hacking games??

Check: http://quiz.ngsec.com/

It is pretty trivial..

Once you are done with it..Dont miss http://hackerslab.org

Amazing.

The temporary one!

void main()
{
FILE *fh = fopen("/tmp/ABC_my_junk_spot", "w+");
fprintf(fh, "hello..what are you looking at?");
fclose(fh);
}

Find out what is wrong with this piece of code?
How would you exploit this to gain root access if this code runs as root?

PS: The bar girls are like /tmp because
1. They are public property 2.They talk too much

A unix teaser

I was no God.
I told her my password.
She ran to a unix terminal.
She logged in to my account.
Using 'passwd' she changed my password to whatever she wanted.
she checked if the password was changed. It really was.
When she came back, she fainted when she saw me using different password.

How could I do that?

TIP: It was a race condition