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                   Red Hat Security Advisory

Synopsis:          Low: util-linux security and bug fix update
Advisory ID:       RHSA-2007:0235-02
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2007-0235.html
Issue date:        2007-05-01
Updated on:        2007-05-01
Product:           Red Hat Enterprise Linux
Keywords:          mount fdisk login
CVE Names:         CVE-2006-7108 
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1. Summary:

An updated util-linux package that corrects a security issue and fixes
several bugs is now available.

This update has been rated as having low security impact by the Red Hat
Security Response Team.

2. Relevant releases/architectures:

Red Hat Enterprise Linux AS version 4 - i386, ia64, ppc, s390, s390x, x86_64
Red Hat Enterprise Linux Desktop version 4 - i386, x86_64
Red Hat Enterprise Linux ES version 4 - i386, ia64, x86_64
Red Hat Enterprise Linux WS version 4 - i386, ia64, x86_64

3. Problem description:

The util-linux package contains a collection of basic system utilities.

A flaw was found in the way the login process handled logins which did not
require authentication. Certain processes which conduct their own
authentication could allow a remote user to bypass intended access policies
which would normally be enforced by the login process. (CVE-2006-7108)

This update also fixes the following bugs:

* The partx, addpart and delpart commands were not documented.

* The "umount -l" command did not work on hung NFS mounts with cached data.

* The mount command did not mount NFS V3 share where sec=none was specified.

* The mount command did not read filesystem LABEL from unpartitioned disks.

* The mount command did not recognize labels on VFAT filesystems.

* The fdisk command did not support 4096 sector size for the "-b" option.

* The mount man page did not list option "mand" or information about
/etc/mtab limitations.

All users of util-linux should upgrade to these updated packages, which
contain backported patches to correct these issues.

4. Solution:

Before applying this update, make sure that all previously-released
errata relevant to your system have been applied.  Use Red Hat
Network to download and update your packages.  To launch the Red Hat
Update Agent, use the following command:

    up2date

For information on how to install packages manually, refer to the
following Web page for the System Administration or Customization
guide specific to your system:

    http://www.redhat.com/docs/manuals/enterprise/

5. Bug IDs fixed (http://bugzilla.redhat.com/):

169299 - umount -l should work on hung NFS mounts with cached data
177331 - CVE-2006-7108 login omits pam_acct_mgmt & pam_chauthtok when authentication is skipped.
187370 - Unable to mount NFS V3 share where sec=none is specified
188099 - can't mount iscsi ext3 fs by label.
197768 - man mount' does not list option 'mand'

6. RPMs required:

Red Hat Enterprise Linux AS version 4:

SRPMS:
ftp://updates.redhat.com/enterprise/4AS/en/os/SRPMS/util-linux-2.12a-16.EL4.25.src.rpm
b55ecbe0eac80ed7482e5e31265eb372  util-linux-2.12a-16.EL4.25.src.rpm

i386:
ff7c2ff0b317f3d23d8c86f07d101c55  util-linux-2.12a-16.EL4.25.i386.rpm
5d8435d17fd695098f82bab92b67894f  util-linux-debuginfo-2.12a-16.EL4.25.i386.rpm

ia64:
111cedb53d72339a1eb57880a463f669  util-linux-2.12a-16.EL4.25.ia64.rpm
952ccc2d0f0255f9d534b45e3e4d5f56  util-linux-debuginfo-2.12a-16.EL4.25.ia64.rpm

ppc:
900880d8faadebd6216952c6eaa8ee31  util-linux-2.12a-16.EL4.25.ppc.rpm
46ed5fd2cb84f16380a5f538b2cc6d53  util-linux-debuginfo-2.12a-16.EL4.25.ppc.rpm

s390:
85ab4e837ed645340d8d31687c9c2543  util-linux-2.12a-16.EL4.25.s390.rpm
1f839d8cac1ce9eea1f33364f46ae04b  util-linux-debuginfo-2.12a-16.EL4.25.s390.rpm

s390x:
051a5321c719ee77c56f218a4f360b7d  util-linux-2.12a-16.EL4.25.s390x.rpm
735b7dda37760e12c3ec62eb2ff6f42e  util-linux-debuginfo-2.12a-16.EL4.25.s390x.rpm

x86_64:
4566fc204cdc0b6420f71f87959b82e2  util-linux-2.12a-16.EL4.25.x86_64.rpm
4728ab213aa22b059794f61e8800c465  util-linux-debuginfo-2.12a-16.EL4.25.x86_64.rpm

Red Hat Enterprise Linux Desktop version 4:

SRPMS:
ftp://updates.redhat.com/enterprise/4Desktop/en/os/SRPMS/util-linux-2.12a-16.EL4.25.src.rpm
b55ecbe0eac80ed7482e5e31265eb372  util-linux-2.12a-16.EL4.25.src.rpm

i386:
ff7c2ff0b317f3d23d8c86f07d101c55  util-linux-2.12a-16.EL4.25.i386.rpm
5d8435d17fd695098f82bab92b67894f  util-linux-debuginfo-2.12a-16.EL4.25.i386.rpm

x86_64:
4566fc204cdc0b6420f71f87959b82e2  util-linux-2.12a-16.EL4.25.x86_64.rpm
4728ab213aa22b059794f61e8800c465  util-linux-debuginfo-2.12a-16.EL4.25.x86_64.rpm

Red Hat Enterprise Linux ES version 4:

SRPMS:
ftp://updates.redhat.com/enterprise/4ES/en/os/SRPMS/util-linux-2.12a-16.EL4.25.src.rpm
b55ecbe0eac80ed7482e5e31265eb372  util-linux-2.12a-16.EL4.25.src.rpm

i386:
ff7c2ff0b317f3d23d8c86f07d101c55  util-linux-2.12a-16.EL4.25.i386.rpm
5d8435d17fd695098f82bab92b67894f  util-linux-debuginfo-2.12a-16.EL4.25.i386.rpm

ia64:
111cedb53d72339a1eb57880a463f669  util-linux-2.12a-16.EL4.25.ia64.rpm
952ccc2d0f0255f9d534b45e3e4d5f56  util-linux-debuginfo-2.12a-16.EL4.25.ia64.rpm

x86_64:
4566fc204cdc0b6420f71f87959b82e2  util-linux-2.12a-16.EL4.25.x86_64.rpm
4728ab213aa22b059794f61e8800c465  util-linux-debuginfo-2.12a-16.EL4.25.x86_64.rpm

Red Hat Enterprise Linux WS version 4:

SRPMS:
ftp://updates.redhat.com/enterprise/4WS/en/os/SRPMS/util-linux-2.12a-16.EL4.25.src.rpm
b55ecbe0eac80ed7482e5e31265eb372  util-linux-2.12a-16.EL4.25.src.rpm

i386:
ff7c2ff0b317f3d23d8c86f07d101c55  util-linux-2.12a-16.EL4.25.i386.rpm
5d8435d17fd695098f82bab92b67894f  util-linux-debuginfo-2.12a-16.EL4.25.i386.rpm

ia64:
111cedb53d72339a1eb57880a463f669  util-linux-2.12a-16.EL4.25.ia64.rpm
952ccc2d0f0255f9d534b45e3e4d5f56  util-linux-debuginfo-2.12a-16.EL4.25.ia64.rpm

x86_64:
4566fc204cdc0b6420f71f87959b82e2  util-linux-2.12a-16.EL4.25.x86_64.rpm
4728ab213aa22b059794f61e8800c465  util-linux-debuginfo-2.12a-16.EL4.25.x86_64.rpm

These packages are GPG signed by Red Hat for security.  Our key and 
details on how to verify the signature are available from
https://www.redhat.com/security/team/key/#package

7. References:

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-7108
http://www.redhat.com/security/updates/classification/#low

8. Contact:

The Red Hat security contact is .  More contact
details at https://www.redhat.com/security/team/contact/

Copyright 2007 Red Hat, Inc.