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Red Hat Security Advisory 2013-1192-01

Red Hat Security Advisory 2013-1192-01
Posted Sep 4, 2013
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2013-1192-01 - The Simple Protocol for Independent Computing Environments 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 hypervisor or on Red Hat Enterprise Virtualization Hypervisors. A flaw was found in the way concurrent access to the clients ring buffer was performed in the spice-server library. A remote user able to initiate a SPICE connection to an application acting as a SPICE server could use this flaw to crash the application.

tags | advisory, remote, kernel, local, protocol
systems | linux, redhat
advisories | CVE-2013-4130
SHA-256 | 7f4b3e93d9d8909c46a3f1a38ae792c41223e25fe7076dbbfe59f229da3b0bbc

Red Hat Security Advisory 2013-1192-01

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

Synopsis: Moderate: spice-server security update
Advisory ID: RHSA-2013:1192-01
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2013-1192.html
Issue date: 2013-09-03
CVE Names: CVE-2013-4130
=====================================================================

1. Summary:

An updated spice-server package that fixes one security issue is 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:

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 flaw was found in the way concurrent access to the clients ring buffer
was performed in the spice-server library. A remote user able to initiate a
SPICE connection to an application acting as a SPICE server could use this
flaw to crash the application. (CVE-2013-4130)

This issue was discovered by David Gibson of Red Hat.

Users of spice-server are advised to upgrade to this updated package, which
contains a backported patch to correct this issue. Applications acting as a
SPICE server must be restarted for this update to take effect. Note that
QEMU-KVM guests providing SPICE console access must be restarted 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/site/articles/11258

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

984769 - CVE-2013-4130 spice: unsafe clients ring access abort

6. Package List:

Red Hat Enterprise Linux Desktop (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/spice-server-0.12.0-12.el6_4.3.src.rpm

x86_64:
spice-server-0.12.0-12.el6_4.3.x86_64.rpm
spice-server-debuginfo-0.12.0-12.el6_4.3.x86_64.rpm

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

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/spice-server-0.12.0-12.el6_4.3.src.rpm

x86_64:
spice-server-debuginfo-0.12.0-12.el6_4.3.x86_64.rpm
spice-server-devel-0.12.0-12.el6_4.3.x86_64.rpm

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

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/spice-server-0.12.0-12.el6_4.3.src.rpm

x86_64:
spice-server-0.12.0-12.el6_4.3.x86_64.rpm
spice-server-debuginfo-0.12.0-12.el6_4.3.x86_64.rpm

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

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/spice-server-0.12.0-12.el6_4.3.src.rpm

x86_64:
spice-server-debuginfo-0.12.0-12.el6_4.3.x86_64.rpm
spice-server-devel-0.12.0-12.el6_4.3.x86_64.rpm

Red Hat Enterprise Linux Server (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/spice-server-0.12.0-12.el6_4.3.src.rpm

x86_64:
spice-server-0.12.0-12.el6_4.3.x86_64.rpm
spice-server-debuginfo-0.12.0-12.el6_4.3.x86_64.rpm

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

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/spice-server-0.12.0-12.el6_4.3.src.rpm

x86_64:
spice-server-debuginfo-0.12.0-12.el6_4.3.x86_64.rpm
spice-server-devel-0.12.0-12.el6_4.3.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/spice-server-0.12.0-12.el6_4.3.src.rpm

x86_64:
spice-server-0.12.0-12.el6_4.3.x86_64.rpm
spice-server-debuginfo-0.12.0-12.el6_4.3.x86_64.rpm

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

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/spice-server-0.12.0-12.el6_4.3.src.rpm

x86_64:
spice-server-debuginfo-0.12.0-12.el6_4.3.x86_64.rpm
spice-server-devel-0.12.0-12.el6_4.3.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-2013-4130.html
https://access.redhat.com/security/updates/classification/#moderate

8. Contact:

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

Copyright 2013 Red Hat, Inc.
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