mailing list archives
Re: mSQL vulnerabilities
From: blkadder () VALUE NET (Black Adder)
Date: Tue, 29 Jul 1997 17:04:17 -0700
On Tue, 29 Jul 1997, David Sacerdote wrote:
All mysql string are (own coded) C++ strings and the String class includes a
length so this problem doesn't exists.
No. At least a few are on the stack. Look at mysql_rm_table() in
3.20.24a for example:
int mysql_rm_table(THD *thd,tname_t *tables)
I've not traced the functions which call mysql_rm_table to see if they do
bounds checking, but what I see it doing is the kind of thing which makes
me feel nervous, and suspect a hole, as my initial post to the bugtraq
mailing list indicated. I have not *confirmed* or *exploited* any holes
in MySQL as of this afternoon.
I sent Monty(the author of MySQL) a note after I saw the mSQL problems,
and taking a quick look and seeing the implicit declaration of FN_REFLEN
which is equivelant to MAXPATHLENGTH, and calls like the one you show
above. He stated that there are bounds checking (33 characters) so this is
not a problem.