Bugtraq mailing list archives
Re: fixing all buffer overflows --- random magin numbers
From: sanityimp () GEOCITIES COM (Eric Hutchinson)
Date: Sun, 12 Sep 1999 18:35:39 -0400
On Sat, 11 Sep 1999, Dr. Joel M. Hoffman wrote:
In particular, I was thinking that part of building a kernel would involve assigning a random number to each syscall, and creating a syscall.h file with these random numbers. A binary would only run if it was compiled with the proper syscall.h, so all binaries would have to be recompiled for the new kernel, but then, syscall.h could be removed, and the system would be impervious to buffer overflow
ok what happens when you need to compile soemthing else? would you then have to recompile the WHOLE system? and wouldnt the syscall.h essentially be in all the bins, which would most likely be readable, and if they core dumped, the sysbols would be right there. Im defiently not an expert but this seems like a half baked(or mayber fully, how many bowls did you smoke) idea. persoanlly i think the best way to avoid overflows is to programm the apps correctly in the first place, if you dont check before you insert into a buffer you probly shouldnt be writing apps with root/administrative privlages. THAT is how to get rid of all buffer overflows.
Current thread:
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- fixing all buffer overflows --- random magin numbers Dr. Joel M. Hoffman (Sep 11)
- Re: fixing all buffer overflows --- random magin numbers Peter van Dijk (Sep 12)
- Re: fixing all buffer overflows --- random magin numbers Eric Hutchinson (Sep 12)
- Re: fixing all buffer overflows --- random magin numbers Daniel W. Dulitz x108 (Sep 13)
- Re: Root shell vixie cron exploit John Kennedy (Sep 03)
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