Pointer guard for static binaries?

Ulrich Drepper drepper@redhat.com
Wed Jan 4 18:46:00 GMT 2006


Roland McGrath wrote:
> Really?  If you have exploit code running, can't it use %fs:N easily enough?

It is easier to dump regions of the libc DSO memory range via a stray
memcpy or so.  This isn't easily doable with the TCB because the TCB
pointer is not readily available.

-- 
➧ Ulrich Drepper ➧ Red Hat, Inc. ➧ 444 Castro St ➧ Mountain View, CA ❖

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