Issued:
2018-09-20
Updated:
2018-09-20

RHSA-2018:2732 - Important: spice-gtk and spice-server security update

Synopsis

Important: spice-gtk and spice-server security update

Type/Severity

Security Advisory Important

Topic

An update for spice-gtk and spice-server is now available for Red Hat Enterprise Linux 6.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

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.

The spice-gtk packages provide a GIMP Toolkit (GTK+) widget for Simple Protocol for Independent Computing Environments (SPICE) clients. Both Virtual Machine Manager and Virtual Machine Viewer can make use of this widget to access virtual machines using the SPICE protocol.

Security Fix(es):

  • spice: Missing check in demarshal.py:write_validate_array_item() allows for buffer overflow and denial of service (CVE-2018-10873)

For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.

This issue was discovered by Frediano Ziglio (Red Hat).

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

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

All applications using SPICE (most notably all QEMU-KVM instances using the SPICE console) must be restarted for this update to take effect.

Affected Products

ProductVersionArch
Red Hat Enterprise Linux for Scientific Computing6x86_64
Red Hat Enterprise Linux Workstation6x86_64
Red Hat Enterprise Linux Workstation6i386
Red Hat Enterprise Linux Server6x86_64
Red Hat Enterprise Linux Server6i386
Red Hat Enterprise Linux Server - Retired Extended Life Cycle Support6x86_64
Red Hat Enterprise Linux Server - Extended Life Cycle Support6x86_64
Red Hat Enterprise Linux Server - Extended Life Cycle Support6i386
Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension6x86_64
Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension6i386
Red Hat Enterprise Linux Desktop6x86_64
Red Hat Enterprise Linux Desktop6i386

Updated Packages

  • spice-server-0.12.4-16.el6_10.1.x86_64.rpm
  • spice-gtk-python-0.26-8.el6_10.1.x86_64.rpm
  • spice-gtk-tools-0.26-8.el6_10.1.i686.rpm
  • spice-glib-0.26-8.el6_10.1.x86_64.rpm
  • spice-gtk-tools-0.26-8.el6_10.1.x86_64.rpm
  • spice-gtk-debuginfo-0.26-8.el6_10.1.i686.rpm
  • spice-gtk-debuginfo-0.26-8.el6_10.1.x86_64.rpm
  • spice-server-0.12.4-16.el6_10.1.src.rpm
  • spice-glib-devel-0.26-8.el6_10.1.i686.rpm
  • spice-gtk-0.26-8.el6_10.1.src.rpm
  • spice-server-debuginfo-0.12.4-16.el6_10.1.x86_64.rpm
  • spice-server-devel-0.12.4-16.el6_10.1.x86_64.rpm
  • spice-gtk-0.26-8.el6_10.1.x86_64.rpm
  • spice-gtk-0.26-8.el6_10.1.i686.rpm
  • spice-glib-devel-0.26-8.el6_10.1.x86_64.rpm
  • spice-gtk-python-0.26-8.el6_10.1.i686.rpm
  • spice-glib-0.26-8.el6_10.1.i686.rpm
  • spice-gtk-devel-0.26-8.el6_10.1.i686.rpm
  • spice-gtk-devel-0.26-8.el6_10.1.x86_64.rpm

Fixes

CVEs

References

Additional information