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ESB-2014.2274 - [Virtual][RedHat] qemu-kvm-rhev: Access confidential data - Existing account

Date: 03 December 2014
References: ESB-2014.1772  ESB-2014.1886  ESB-2014.2062  ESB-2014.2154  ESB-2015.1034  

Click here for printable version
Click here for PGP verifiable version
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===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2014.2274
                    Low: qemu-kvm-rhev security update
                              3 December 2014

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           qemu-kvm-rhev
Publisher:         Red Hat
Operating System:  Red Hat Enterprise Linux Server 7
                   KVM
Impact/Access:     Access Confidential Data -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2014-3615  

Reference:         ESB-2014.2154
                   ESB-2014.2062
                   ESB-2014.1886
                   ESB-2014.1772

Original Bulletin: 
   https://rhn.redhat.com/errata/RHSA-2014-1941.html

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

Synopsis:          Low: qemu-kvm-rhev security update
Advisory ID:       RHSA-2014:1941-01
Product:           Red Hat Enterprise Linux OpenStack Platform
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2014-1941.html
Issue date:        2014-12-02
CVE Names:         CVE-2014-3615 
=====================================================================

1. Summary:

Updated qemu-kvm-rhev packages that fix one security issue are now
available for Red Hat Enterprise Linux OpenStack Platform 5.0 for Red Hat
Enterprise Linux 7.

Red Hat Product Security has rated this update as having Low 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 OpenStack Platform 5.0 for RHEL 7 - x86_64

3. Description:

KVM (Kernel-based Virtual Machine) is a full virtualization solution for
Linux on AMD64 and Intel 64 systems. The qemu-kvm-rhev package provides the
user-space component for running virtual machines using KVM, in
environments managed by Red Hat Enterprise Linux OpenStack Platform.

An information leak flaw was found in the way QEMU's VGA emulator accessed
frame buffer memory for high resolution displays. A privileged guest user
could use this flaw to leak memory contents of the host to the guest by
setting the display to use a high resolution in the guest. (CVE-2014-3615)

This issue was discovered by Laszlo Ersek of Red Hat.

All users of qemu-kvm-rhev are advised to upgrade to these updated
packages, which contain a backported patch to correct this issue. After
installing this update, shut down all running virtual machines. Once all
virtual machines have shut down, start them again for this update to take
effect.

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/articles/11258

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

1139115 - CVE-2014-3615 Qemu: information leakage when guest sets high resolution

6. Package List:

Red Hat Enterprise Linux OpenStack Platform 5.0 for RHEL 7:

Source:
qemu-kvm-rhev-1.5.3-60.el7_0.10.src.rpm

x86_64:
libcacard-devel-rhev-1.5.3-60.el7_0.10.x86_64.rpm
libcacard-rhev-1.5.3-60.el7_0.10.x86_64.rpm
libcacard-tools-rhev-1.5.3-60.el7_0.10.x86_64.rpm
qemu-img-rhev-1.5.3-60.el7_0.10.x86_64.rpm
qemu-kvm-common-rhev-1.5.3-60.el7_0.10.x86_64.rpm
qemu-kvm-rhev-1.5.3-60.el7_0.10.x86_64.rpm
qemu-kvm-rhev-debuginfo-1.5.3-60.el7_0.10.x86_64.rpm
qemu-kvm-tools-rhev-1.5.3-60.el7_0.10.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/

7. References:

https://access.redhat.com/security/cve/CVE-2014-3615
https://access.redhat.com/security/updates/classification/#low

8. Contact:

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

Copyright 2014 Red Hat, Inc.
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===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
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Qld 4072

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===========================================================================
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