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Date: Mon, 18 Aug 2008 13:57:20 +0200
From: Nico Golde <oss-security+ml@...lde.de>
To: oss-security@...ts.openwall.com
Subject: Re: CVE id request: mktemp
Hi Todd,
* Todd C. Miller <Todd.Miller@...rtesan.com> [2008-08-18 13:54]:
> In message <20080818085956.GB29717@...e.de>
> so spake Sebastian Krahmer (krahmer):
>
> > BTW, mktemp(1) is using O_EXCL anyway, so I dont see
> > an issue. Additionally all of our scripts use
> > more than 6 X' as also shown in the
> > example section of the manpage. We are not going to
> > release updates for this non-issue.
>
> I don't think it is a security issue either. Vendors can also just
> configure mktemp with the --with-libc flag to use the libc
> mkstemp()/mkdtemp() functions instead of the bundled version if
> they prefer.
I disagree because mktemp offers the functionality of just
creating the file name and instantly unlinking it thus only
providing the generation of a random name. While I don't
think that many scripts rely on this it can be the case.
--with-libc is not used by some vendors because it limits
the template used for the file name. mktemp from coreutils
should be a better choice any way...
Cheers
Nico
--
Nico Golde - http://www.ngolde.de - nion@...ber.ccc.de - GPG: 0x73647CFF
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