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  • Committer: Teddy Hogeborn
  • Date: 2014-06-08 03:10:08 UTC
  • Revision ID: teddy@recompile.se-20140608031008-mc9bd7b024a3q0y0
Address a very theoretical possible security issue in mandos-client.

If there were to run some sort of "cleaner" process for /run/tmp (or
/tmp), and mandos-client were to run for long enough for that cleaner
process to remove the temporary directory for GPGME, there was a
possibility that another unprivileged process could trick the (also
unprivileged) mandos-client process to remove other files or symlinks
which the unprivileged mandos-client process was allowed to remove.
This is not currently known to have been exploitable, since there are
no known initramfs environments running such cleaner processes.

* plugins.d/mandos-client.c (main): Use O_NOFOLLOW when opening
                                    tempdir for cleaning.

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Source: <http://www.recompile.se/mandos>
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Files: *
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Copyright: Copyright © 2008-2016 Teddy Hogeborn
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           Copyright © 2008-2016 Björn Påhlsson
 
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Copyright: Copyright © 2008-2014 Teddy Hogeborn
 
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           Copyright © 2008-2014 Björn Påhlsson
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License: GPL-3+
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    This program is free software: you can redistribute it and/or
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    modify it under the terms of the GNU General Public License as