====================================================================                   Red Hat Security Advisory

Synopsis:          Moderate: libguestfs security, bug fix, and enhancement update
Advisory ID:       RHSA-2013:1536-02
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2013:1536.html
Issue date:        2013-11-21
CVE Names:         CVE-2013-4419 
====================================================================
1. Summary:

Updated libguestfs packages that fix one security issue, several bugs, and
add various enhancements are now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having moderate
security impact. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available from the CVE link in
the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Desktop (v. 6) - x86_64
Red Hat Enterprise Linux Desktop Optional (v. 6) - x86_64
Red Hat Enterprise Linux HPC Node (v. 6) - x86_64
Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64
Red Hat Enterprise Linux Server (v. 6) - x86_64
Red Hat Enterprise Linux Server Optional (v. 6) - x86_64
Red Hat Enterprise Linux Workstation (v. 6) - x86_64
Red Hat Enterprise Linux Workstation Optional (v. 6) - x86_64

3. Description:

Libguestfs is a library and set of tools for accessing and modifying guest
disk images.

It was found that guestfish, which enables shell scripting and command line
access to libguestfs, insecurely created the temporary directory used to
store the network socket when started in server mode. A local attacker
could use this flaw to intercept and modify other user's guestfish command,
allowing them to perform arbitrary guestfish actions with the privileges of
a different user, or use this flaw to obtain authentication credentials.
(CVE-2013-4419)

This issue was discovered by Michael Scherer of the Red Hat Regional IT
team.

These updated libguestfs packages include numerous bug fixes and
enhancements. Space precludes documenting all of these changes in this
advisory. Users are directed to the Red Hat Enterprise Linux 6.5 Technical
Notes, linked to in the References, for information on the most significant
of these changes.

All libguestfs users are advised to upgrade to these updated packages,
which contain backported patches to correct these issues and add these
enhancements.

4. Solution:

Before applying this update, make sure all previously-released errata
relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at
https://access.redhat.com/site/articles/11258

5. Bugs fixed (https://bugzilla.redhat.com/):

892291 - guestmount: link() incorrectly returns ENOENT, when it should be EXDEV
892834 - guestmount: rename() incorrectly follows symbolic links
908255 - error message didn't translate to user language
909666 - Unexpected non-tail recursion in recv_from_daemon results in stack overflow in very long-running API calls that send progress messages
958183 - Rebase libguestfs in RHEL 6.5
971207 - guestfish aug-init command fails: libguestfs: error: aug_init: Augeas initialization failed
971326 - ntfsresize-opts execute failed when omitted the 'size' option
971664 - Need add some removed commands back into guestfish in RHEL 6.5
972413 - txz-out command produces a bzip2-compressed file (should be xz-compressed)
973425 - lsscsi is not available in 6client
975377 - inspect-get-hostname return unknown for linux guest in rhel6
975572 - virt-sysprep is in the wrong subpackage
975753 - "virt-resize --expand" and "virt-resize --resize" outputs error message for Win2008 32bit OS
975760 - Specifying virtio interface ('iface' parameter) breaks the appliance attach-method - libguestfs hangs
980358 - filesystem-available should return false for xfs in rhel6
980372 - "hivex-commit" should fail with a relative path
980502 - libguestfs is not able to be built with yum cache from multiple repos
983690 - libguestfs double free when kernel link fails during launch
985269 - Can't set acl value for a specified user with 'acl-set-file'
988863 - virt-sysprep --firstboot option writes incorrect "99" (instead of "S99") sysv-init-style start up script
989352 - cap-get-file will return error if the file has not be set capabilities
996039 - guestfish does not work due to conflict of remote and interactive mode
997884 - 9p support should be disabled in libguestfs in RHEL 6
998108 - Let's enable kvmclock in RHEL 6
1000122 - 'sh' command before mount causes daemon to segfault
1016960 - CVE-2013-4419 libguestfs: insecure temporary directory handling for guestfish's network socket

6. Package List:

Red Hat Enterprise Linux Desktop (v. 6):

Source:

x86_64:
libguestfs-1.20.11-2.el6.x86_64.rpm
libguestfs-debuginfo-1.20.11-2.el6.x86_64.rpm
libguestfs-java-1.20.11-2.el6.x86_64.rpm
libguestfs-tools-1.20.11-2.el6.x86_64.rpm
libguestfs-tools-c-1.20.11-2.el6.x86_64.rpm
perl-Sys-Guestfs-1.20.11-2.el6.x86_64.rpm
python-libguestfs-1.20.11-2.el6.x86_64.rpm

Red Hat Enterprise Linux Desktop Optional (v. 6):

Source:

x86_64:
libguestfs-debuginfo-1.20.11-2.el6.x86_64.rpm
libguestfs-devel-1.20.11-2.el6.x86_64.rpm
libguestfs-java-devel-1.20.11-2.el6.x86_64.rpm
libguestfs-javadoc-1.20.11-2.el6.x86_64.rpm
ocaml-libguestfs-1.20.11-2.el6.x86_64.rpm
ocaml-libguestfs-devel-1.20.11-2.el6.x86_64.rpm
ruby-libguestfs-1.20.11-2.el6.x86_64.rpm

Red Hat Enterprise Linux HPC Node (v. 6):

Source:

x86_64:
libguestfs-1.20.11-2.el6.x86_64.rpm
libguestfs-debuginfo-1.20.11-2.el6.x86_64.rpm
libguestfs-java-1.20.11-2.el6.x86_64.rpm
libguestfs-tools-1.20.11-2.el6.x86_64.rpm
libguestfs-tools-c-1.20.11-2.el6.x86_64.rpm
perl-Sys-Guestfs-1.20.11-2.el6.x86_64.rpm
python-libguestfs-1.20.11-2.el6.x86_64.rpm

Red Hat Enterprise Linux HPC Node Optional (v. 6):

Source:

x86_64:
libguestfs-debuginfo-1.20.11-2.el6.x86_64.rpm
libguestfs-devel-1.20.11-2.el6.x86_64.rpm
libguestfs-java-devel-1.20.11-2.el6.x86_64.rpm
libguestfs-javadoc-1.20.11-2.el6.x86_64.rpm
ocaml-libguestfs-1.20.11-2.el6.x86_64.rpm
ocaml-libguestfs-devel-1.20.11-2.el6.x86_64.rpm
ruby-libguestfs-1.20.11-2.el6.x86_64.rpm

Red Hat Enterprise Linux Server (v. 6):

Source:

x86_64:
libguestfs-1.20.11-2.el6.x86_64.rpm
libguestfs-debuginfo-1.20.11-2.el6.x86_64.rpm
libguestfs-java-1.20.11-2.el6.x86_64.rpm
libguestfs-tools-1.20.11-2.el6.x86_64.rpm
libguestfs-tools-c-1.20.11-2.el6.x86_64.rpm
perl-Sys-Guestfs-1.20.11-2.el6.x86_64.rpm
python-libguestfs-1.20.11-2.el6.x86_64.rpm

Red Hat Enterprise Linux Server Optional (v. 6):

Source:

x86_64:
libguestfs-debuginfo-1.20.11-2.el6.x86_64.rpm
libguestfs-devel-1.20.11-2.el6.x86_64.rpm
libguestfs-java-devel-1.20.11-2.el6.x86_64.rpm
libguestfs-javadoc-1.20.11-2.el6.x86_64.rpm
ocaml-libguestfs-1.20.11-2.el6.x86_64.rpm
ocaml-libguestfs-devel-1.20.11-2.el6.x86_64.rpm
ruby-libguestfs-1.20.11-2.el6.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 6):

Source:

x86_64:
libguestfs-1.20.11-2.el6.x86_64.rpm
libguestfs-debuginfo-1.20.11-2.el6.x86_64.rpm
libguestfs-java-1.20.11-2.el6.x86_64.rpm
libguestfs-tools-1.20.11-2.el6.x86_64.rpm
libguestfs-tools-c-1.20.11-2.el6.x86_64.rpm
perl-Sys-Guestfs-1.20.11-2.el6.x86_64.rpm
python-libguestfs-1.20.11-2.el6.x86_64.rpm

Red Hat Enterprise Linux Workstation Optional (v. 6):

Source:

x86_64:
libguestfs-debuginfo-1.20.11-2.el6.x86_64.rpm
libguestfs-devel-1.20.11-2.el6.x86_64.rpm
libguestfs-java-devel-1.20.11-2.el6.x86_64.rpm
libguestfs-javadoc-1.20.11-2.el6.x86_64.rpm
ocaml-libguestfs-1.20.11-2.el6.x86_64.rpm
ocaml-libguestfs-devel-1.20.11-2.el6.x86_64.rpm
ruby-libguestfs-1.20.11-2.el6.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://access.redhat.com/security/team/key/#package

7. References:

https://www.redhat.com/security/data/cve/CVE-2013-4419.html
https://access.redhat.com/security/updates/classification/#moderate
https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/6.5_Technical_Notes/libguestfs.html#RHSA-2013-1536

8. Contact:

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

Copyright 2013 Red Hat, Inc.