[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: glibc segfault on "special" long double values is _ok_!?

From: Jim Meyering
Subject: Re: glibc segfault on "special" long double values is _ok_!?
Date: Wed, 06 Jun 2007 15:36:53 +0200

Andreas Schwab <address@hidden> wrote:
> Jim Meyering <address@hidden> 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.

reply via email to

[Prev in Thread] Current Thread [Next in Thread]