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Date: Fri, 21 Sep 2012 12:41:26 +0200
From: Matthias Weckbecker <mweckbecker@...e.de>
To: oss-security@...ts.openwall.com
Cc: Dan Rosenberg <dan.j.rosenberg@...il.com>, vcizek@...e.de,
tmraz@...hat.com
Subject: Re: CVE request(?): gpg: improper file permssions set when en/de-crypting files
On Friday 21 September 2012 12:35:49 Dan Rosenberg wrote:
[...]
> >
> > [1] https://bugzilla.novell.com/show_bug.cgi?id=780943
> >
> > Wouldn't one usually expect files that were previously encrypted to
> > contain sensitive content (that's probably why content is encrypted at
> > all)? And if so, shouldn't such files be only readable by certain users /
> > group of users by default? Otherwise, a file that is e.g. decrypted in
> > /tmp might leak due to the file permissions being too loose.
>
> GPG seems to just be honoring the umask:
>
Yes, that's correct. I think, however, that many distros ship umask=0022 by
default. That would be -rw-r--r--.
[...]
>
> Still might be worth fixing though.
>
I thought so too.
> -Dan
Thanks for your feedback so far!
Matthias
--
Matthias Weckbecker, Senior Security Engineer, SUSE Security Team
SUSE LINUX Products GmbH, Maxfeldstr. 5, D-90409 Nuernberg, Germany
Tel: +49-911-74053-0; http://suse.com/
SUSE LINUX Products GmbH, GF: Jeff Hawn, HRB 16746 (AG Nuernberg)
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