Jim Meyering <[EMAIL PROTECTED]> writes:
> Andreas Schwab <[EMAIL PROTECTED]> wrote:
>> Jim Meyering <[EMAIL PROTECTED]> writes:
>>
>>> I'm interested, because I don't want my applications to segfault on such
>>> inputs. Sure it may look a little far-fetched, but I think it's not.
>>> Imagine such a bit pattern being injected into a network data stream
>>> that is then printed as a long double. Just printing an arbitrary
>>> "long double" should not make a server vulnerable to a DoS attack.
>>
>> In which way is this different from passing NULL to strlen?
>
> I'm surprised to hear you arguing that it is desirable for glibc's printf
> implementation to segfault for a long-double with an unusual bit pattern.
In which way is this different from printf("%s", (char*)1)?
Andreas.
--
Andreas Schwab, SuSE Labs, [EMAIL PROTECTED]
SuSE Linux Products GmbH, Maxfeldstraße 5, 90409 Nürnberg, Germany
PGP key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
"And now for something completely different."
