Synopsis: Low: ecryptfs-utils security, bug fix, and enhancement update
Issue date: 2009-09-02
CVE Names: CVE-2008-5188
These updated ecryptfs-utils packages have been upgraded to upstream
version 75, which provides a number of bug fixes and enhancements over
the previous version. In addition, these packages provide a graphical
program to help configure and use eCryptfs. To start this program, run
the command:
ecryptfs-mount-helper-gui
Important: the syntax of certain eCryptfs mount options has changed.
Users who were previously using the initial Technology Preview release
of ecryptfs-utils are advised to refer to the ecryptfs(7) man page, and
to update any affected mount scripts and /etc/fstab entries for eCryptfs
file systems.
A disclosure flaw was found in the way the "ecryptfs-setup-private"
script passed passphrases to the "ecryptfs-wrap-passphrase" and
"ecryptfs-add-passphrase" commands as command line arguments. A local
user could obtain the passphrases of other users who were running the
script from the process listing. (CVE-2008-5188)
These updated packages provide various enhancements, including a mount
helper and supporting libraries to perform key management and mounting
functions.
Notable enhancements include:
* a new package, ecryptfs-utils-gui, has been added to this update. This
package depends on the pygtk2 and pygtk2-libglade packages and provides
the eCryptfs Mount Helper GUI program. To install the GUI, first install
ecryptfs-utils and then issue the following command:
yum install ecryptfs-utils-gui
(BZ#500997)
* the "ecryptfs-rewrite-file" utility is now more intelligent when
dealing with non-existent files and with filtering special files such as
the "." directory. In addition, the progress output from
"ecryptfs-rewrite-file" has been improved and is now more explicit about
the success status of each target. (BZ#500813)
* descriptions of the "verbose" flag and the "verbosity=[x]" option,
where [x] is either 0 or 1, were missing from a number of eCryptfs
manual pages, and have been added. Refer to the eCryptfs man pages for
important information regarding using the verbose and/or verbosity
options. (BZ#470444)
These updated packages also fix the following bugs:
* mounting a directory using the eCryptfs mount helper with an RSA key
that was too small did not allow the eCryptfs mount helper to encrypt
the entire key. When this situation occurred, the mount helper did not
display an error message alerting the user to the fact that the key size
was too small, possibly leading to corrupted files. The eCryptfs mount
helper now refuses RSA keys which are to small to encrypt the eCryptfs
key. (BZ#499175)
* when standard input was redirected from /dev/null or was unavailable,
attempting to mount a directory with the eCryptfs mount helper caused it
to become unresponsive and eventually crash, or an "invalid value" error
message, depending on if the "--verbosity=[value]" option was provided
as an argument, and, if so, its value. With these updated packages,
attempting to mount a directory using "mount.ecryptfs" under the same
conditions results in either the mount helper attempting to use default
values (if "verbosity=0" is supplied), or an "invalid value" error
message (instead of the mount helper hanging) if standard input is
redirected and "--verbosity=1" is supplied, or that option is omitted
entirely. (BZ#499367)
* attempting to use the eCryptfs mount helper with an OpenSSL key when
the keyring did not contain enough space for the key resulted in an
unhelpful error message. The user is now alerted when this situation
occurs. (BZ#501460)
* the eCryptfs mount helper no longer fails upon receiving an incorrect
or empty answer to "yes/no" questions. (BZ#466210)
SL 5.x
SRPMS:
ecryptfs-utils-75-5.el5.src.rpm
i386:
ecryptfs-utils-75-5.el5.i386.rpm
ecryptfs-utils-devel-75-5.el5.i386.rpm
ecryptfs-utils-gui-75-5.el5.i386.rpm
x86_64:
ecryptfs-utils-75-5.el5.i386.rpm
ecryptfs-utils-75-5.el5.x86_64.rpm
ecryptfs-utils-devel-75-5.el5.i386.rpm
ecryptfs-utils-devel-75-5.el5.x86_64.rpm
ecryptfs-utils-gui-75-5.el5.x86_64.rpm
-Connie Sieh
-Troy Dawson
|
