hi ya vincent
 
> I'm working on buffer overflows these days, and more precisely the possible
> methods to avoid them.
> It seems that the most used tools to prevent exploits based on buffer
> overflows are Libsafe, OpenWall, StackGuard... and maybe Saint Jude.
> 
> Has anyone any interesting comments about theses methods ? 
> 

just a quickie comment... 

libsafe seems to work across the board on most major linux distro
and takes 5 minutes to do it all
        http://www.Linux-Sec.net/harden/libsafe.uhow2.txt

openwall works only w/ 2.2.x kernels unless they've released 2.4.x stuff

stackguard was beyond my scope of "patience"...
        ( part of immunix ?? )
        - and it modifies gcc  which i didnt like it doing...

        - sometimes compiling sources already fails with generic
        environments so didnt want to deal with a modified gcc

other kernel patches/methodologies
        http://www.Linux-Sec.net/Harden/kernel.gwif.html

thanx
alvin


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