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Red Hat 6: RHSA-2013:1473-01 Important: spice-server Buffer Overflow

red hat
Calendar Grey October 29, 2013
Dist Redhat Esm H88
Significant spice-client upgrade for Fedora distributions tackling a memory corruption vulnerability, reinforcing protective protocols.
An updated spice-server package that fixes one security issue is now available for Red Hat Enterprise Linux 6

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

Summary

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.

Topics%20covered

Topics Covered

security advisory security update Red Hat buffer overflow remote access important spice-server

References

https://access.redhat.com/security/cve/CVE-2013-4282 https://access.redhat.com/security/updates/classification#important

Package List

Red Hat Enterprise Linux Desktop (v. 6):
Source:
x86_64: 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
Red Hat Enterprise Linux Desktop Optional (v. 6):
Source:
x86_64: spice-server-debuginfo-0.12.0-12.el6_4.5.x86_64.rpm spice-server-devel-0.12.0-12.el6_4.5.x86_64.rpm
Red Hat Enterprise Linux HPC Node (v. 6):
Source:
x86_64: 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
Red Hat Enterprise Linux HPC Node Optional (v. 6):
Source:
x86_64: spice-server-debuginfo-0.12.0-12.el6_4.5.x86_64.rpm spice-server-devel-0.12.0-12.el6_4.5.x86_64.rpm
Red Hat Enterprise Linux Server (v. 6):
Source:
x86_64: 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
Red Hat Enterprise Linux Server Optional (v. 6):
Source:
x86_64: spice-server-debuginfo-0.12.0-12.el6_4.5.x86_64.rpm spice-server-devel-0.12.0-12.el6_4.5.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 6):
Source:
x86_64: 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
Red Hat Enterprise Linux Workstation Optional (v. 6):
Source:
x86_64: spice-server-debuginfo-0.12.0-12.el6_4.5.x86_64.rpm spice-server-devel-0.12.0-12.el6_4.5.x86_64.rpm


Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2013:1473-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2013:1473.html
Issue date: 2013-10-29

Topic

An updated spice-server package that fixes one security issue is nowavailable for Red Hat Enterprise Linux 6.The Red Hat Security Response Team has rated this update as havingimportant security impact. A Common Vulnerability Scoring System (CVSS)base score, which gives a detailed severity rating, is available from theCVE link in the References section.

Topics%20covered

Topics Covered

security advisory security update Red Hat buffer overflow remote access important spice-server

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

Bugs Fixed

1000443 - CVE-2013-4282 spice: stack buffer overflow in reds_handle_ticket() function

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