RHEL 6 : spice-server (RHSA-2013:1192)

This script is Copyright (C) 2013-2014 Tenable Network Security, Inc.


Synopsis :

The remote Red Hat host is missing one or more security updates.

Description :

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.

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.

See also :

https://www.redhat.com/security/data/cve/CVE-2013-4130.html
http://rhn.redhat.com/errata/RHSA-2013-1192.html

Solution :

Update the affected spice-server, spice-server-debuginfo and / or
spice-server-devel packages.

Risk factor :

Medium / CVSS Base Score : 5.0
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P)
CVSS Temporal Score : 4.3
(CVSS2#E:ND/RL:OF/RC:C)
Public Exploit Available : false

Family: Red Hat Local Security Checks

Nessus Plugin ID: 69777 ()

Bugtraq ID: 61192

CVE ID: CVE-2013-4130