Issued:
2013-10-29
Updated:
2013-10-29

RHSA-2013:1473 - Important: spice-server security update

Synopsis

Important: spice-server security update

Type/Severity

Security Advisory Important

Topic

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 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.

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 stack-based buffer overflow flaw was found in the way the reds_handle_ticket() function in the spice-server library handled decryption of ticket data provided by the client. 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-2013-4282)

This issue was discovered by Tomas Jamrisko of Red Hat.

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

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

Affected Products

ProductVersionArch
Red Hat Storage for Public Cloud (via RHUI)2.1x86_64
Red Hat Gluster Storage Server for On-premise2.1x86_64
Red Hat Enterprise Linux for x86_64 - Extended Update Support6.4x86_64
Red Hat Enterprise Linux for Scientific Computing6x86_64
Red Hat Enterprise Linux Workstation6x86_64
Red Hat Enterprise Linux Server6x86_64
Red Hat Enterprise Linux Server from RHUI6x86_64
Red Hat Enterprise Linux Server - Retired Extended Life Cycle Support6x86_64
Red Hat Enterprise Linux Server - Extended Update Support from RHUI6.4x86_64
Red Hat Enterprise Linux Server - Extended Life Cycle Support6x86_64
Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension6x86_64
Red Hat Enterprise Linux Server - AUS6.4x86_64
Red Hat Enterprise Linux EUS Compute Node6.4x86_64
Red Hat Enterprise Linux Desktop6x86_64

Updated Packages

  • spice-server-0.12.0-12.el6_4.5.src.rpm
  • spice-server-devel-0.12.0-12.el6_4.5.x86_64.rpm
  • spice-server-0.12.0-12.el6_4.5.x86_64.rpm
  • spice-server-debuginfo-0.12.0-12.el6_4.5.x86_64.rpm

Fixes

CVEs

References

Additional information