Hi
I program primarily in C++ , but once in a while one is forced to use
the odd strcpy or call API functions that dump results into char*
buffers.
I believe that most security exploits that work by thrashing the stack
to overwrite the return address, allowing arbitrary code execution.
I have now fallen into the habit of declaring temporary buffers as
static char arrays.
Is this a good idea in general?
Are there other kinds of exploits which do not rely on stack
thrashing?
Vivek
Nov 17 '07
11  2065 
rep_movsd <re*******@gmai l.comwrites:
On Nov 20, 3:52 am, CBFalconer <cbfalco...@yah oo.comwrote:
>rep_movsd wrote:
Oh well, I guess its best to avoid such "fixes" and make sure I
always know the size of the data that I strcpy or memcpy, in any
case most APIs ( at least WIN32 ones that i know of ) can be made
to return the size of the data that they will return....
Incomprehensib le. See the advice in my sig, below.
--
If you want to post a followup via groups.google.c om, ensure
you quote enough for the article to make sense. Google is only
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Posted via a free Usenet account fromhttp://www.teranews.co m
Sorry, here is my original query and google groups thread link
Oh dear. Prepare for more of his signature advice because you forgot to
snip his double signature.
>
rep_movsd wrote:
>Hi
>I program primarily in C++ , but once in a while one is forced to use
the odd strcpy or call API functions that dump results into char*
buffers.
>I believe that most security exploits that work by thrashing the stack
to overwrite the return address, allowing arbitrary code execution.
I have now fallen into the habit of declaring temporary buffers as
static char arrays.
>Is this a good idea in general?
Followed up on
groups.google.c om/group/comp.lang.c/browse_thread/thread/
073b39de9430aec 9#
Vivek
Richard wrote:
[21 lines deleted]
>
Oh dear. Prepare for more of his signature advice because you forgot to
snip his double signature.
[16 lines deleted]
Richard, did you really need to quote the entire article to say that?
(Hint: No, you didn't.) (Hint: This criticism is from someone with
a valid signature; perhaps you'll pay attention to it.)
Are you incapable of trimming quoted text?
You said recently that you had killfiled CBFalconer. I had hoped
this would mean we wouldn't see any more complaints from you about
his signature(s).
--
Keith Thompson (The_Other_Keit h) <ks***@mib.or g>
Looking for software development work in the San Diego area.
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