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[RHSA-2015:1714-01] Important: spice security update



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

Synopsis:          Important: spice security update
Advisory ID:       RHSA-2015:1714-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2015-1714.html
Issue date:        2015-09-03
CVE Names:         CVE-2015-3247 
=====================================================================

1. Summary:

An updated spice package that fixes one security issue is now available for
Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having Important 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 Client (v. 7) - x86_64
Red Hat Enterprise Linux Client Optional (v. 7) - x86_64
Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64
Red Hat Enterprise Linux Server (v. 7) - x86_64
Red Hat Enterprise Linux Server Optional (v. 7) - x86_64
Red Hat Enterprise Linux Workstation (v. 7) - x86_64
Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64

3. Description:

The Simple Protocol for Independent Computing Environments (SPICE) is a
remote display protocol for virtual environments. SPICE users can access a
virtualized desktop or server from the local system or any system with
network access to the server. SPICE is used in Red Hat Enterprise Linux for
viewing virtualized guests running on the Kernel-based Virtual Machine
(KVM) hypervisor or on Red Hat Enterprise Virtualization Hypervisors.

A race condition flaw, leading to a heap-based memory corruption, was found
in spice's worker_update_monitors_config() function, which runs under the
QEMU-KVM context on the host. A user in a guest could leverage this flaw to
crash the host QEMU-KVM process or, possibly, execute arbitrary code with
the privileges of the host QEMU-KVM process. (CVE-2015-3247)

This issue was discovered by Frediano Ziglio of Red Hat.

All spice users are advised to upgrade to this updated package, which
contains a backported patch to correct this issue.

4. Solution:

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

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

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

1233238 - CVE-2015-3247 spice: memory corruption in worker_update_monitors_config()

6. Package List:

Red Hat Enterprise Linux Client (v. 7):

Source:
spice-0.12.4-9.el7_1.1.src.rpm

x86_64:
spice-debuginfo-0.12.4-9.el7_1.1.x86_64.rpm
spice-server-0.12.4-9.el7_1.1.x86_64.rpm

Red Hat Enterprise Linux Client Optional (v. 7):

x86_64:
spice-debuginfo-0.12.4-9.el7_1.1.x86_64.rpm
spice-server-devel-0.12.4-9.el7_1.1.x86_64.rpm

Red Hat Enterprise Linux ComputeNode Optional (v. 7):

Source:
spice-0.12.4-9.el7_1.1.src.rpm

x86_64:
spice-debuginfo-0.12.4-9.el7_1.1.x86_64.rpm
spice-server-0.12.4-9.el7_1.1.x86_64.rpm
spice-server-devel-0.12.4-9.el7_1.1.x86_64.rpm

Red Hat Enterprise Linux Server (v. 7):

Source:
spice-0.12.4-9.el7_1.1.src.rpm

x86_64:
spice-debuginfo-0.12.4-9.el7_1.1.x86_64.rpm
spice-server-0.12.4-9.el7_1.1.x86_64.rpm

Red Hat Enterprise Linux Server Optional (v. 7):

x86_64:
spice-debuginfo-0.12.4-9.el7_1.1.x86_64.rpm
spice-server-devel-0.12.4-9.el7_1.1.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 7):

Source:
spice-0.12.4-9.el7_1.1.src.rpm

x86_64:
spice-debuginfo-0.12.4-9.el7_1.1.x86_64.rpm
spice-server-0.12.4-9.el7_1.1.x86_64.rpm

Red Hat Enterprise Linux Workstation Optional (v. 7):

x86_64:
spice-debuginfo-0.12.4-9.el7_1.1.x86_64.rpm
spice-server-devel-0.12.4-9.el7_1.1.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-2015-3247
https://access.redhat.com/security/updates/classification/#important

8. Contact:

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

Copyright 2015 Red Hat, Inc.
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