[Bug 936822] Re: ureadahead Caches eCryptfs Filesystem Contents
Ubuntu Foundation's Bug Bot
936822 at bugs.launchpad.net
Tue Feb 21 00:13:43 UTC 2012
The attachment "ureadahead-other.diff" of this bug report has been
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** Tags added: patch
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https://bugs.launchpad.net/bugs/936822
Title:
ureadahead Caches eCryptfs Filesystem Contents
Status in “ureadahead” package in Ubuntu:
New
Bug description:
If you have autologin enabled or you're just a fast typist, ureadahead
has the potential to cache pieces and whole filenames of files in an
eCryptfs filesystem. This is a potential security vulnerability as it
could theoretically provide a cryptanalyst vital pieces of plaintext
data to break the filesystem encryption. It's a big "if" but it's
possible.
I have attached a patch for /etc/init/ureadahead-other.conf to prevent
the caching of eCryptfs filesystems.
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