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RHEL 7: RHSA-2018:2731 Important: Spice Buffer Overflow

red hat
Calendar Grey September 20, 2018
Dist Redhat Esm H88
Recent updates to libspice and spice-gtk enhance security measures in Red Hat, tackling significant buffer overflow vulnerabilities. Discover the details!
An update for spice and spice-gtk is now available for Red Hat Enterprise Linux 7

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.

Summary

The Simple Protocol for Independent Computing Environments (SPICE) is a remote display system built for virtual environments which allows the user to view a computing 'desktop' environment not only on the machine where it is running, but from anywhere on the Internet and from a wide variety of machine architectures.
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).

Topics%20covered

Topics Covered

security advisory security update buffer overflow Red Hat Enterprise Linux important spice-gtk spice

References

https://access.redhat.com/security/cve/CVE-2018-10873 https://access.redhat.com/security/updates/classification#important

Package List

Red Hat Enterprise Linux Client (v. 7):
Source: spice-0.14.0-2.el7_5.5.src.rpm spice-gtk-0.34-3.el7_5.2.src.rpm
x86_64: spice-debuginfo-0.14.0-2.el7_5.5.x86_64.rpm spice-glib-0.34-3.el7_5.2.i686.rpm spice-glib-0.34-3.el7_5.2.x86_64.rpm spice-gtk-debuginfo-0.34-3.el7_5.2.i686.rpm spice-gtk-debuginfo-0.34-3.el7_5.2.x86_64.rpm spice-gtk3-0.34-3.el7_5.2.i686.rpm spice-gtk3-0.34-3.el7_5.2.x86_64.rpm spice-server-0.14.0-2.el7_5.5.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64: spice-debuginfo-0.14.0-2.el7_5.5.x86_64.rpm spice-glib-devel-0.34-3.el7_5.2.i686.rpm spice-glib-devel-0.34-3.el7_5.2.x86_64.rpm spice-gtk-debuginfo-0.34-3.el7_5.2.i686.rpm spice-gtk-debuginfo-0.34-3.el7_5.2.x86_64.rpm spice-gtk-tools-0.34-3.el7_5.2.x86_64.rpm spice-gtk3-devel-0.34-3.el7_5.2.i686.rpm spice-gtk3-devel-0.34-3.el7_5.2.x86_64.rpm spice-gtk3-vala-0.34-3.el7_5.2.x86_64.rpm spice-server-devel-0.14.0-2.el7_5.5.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional (v. 7):
Source: spice-0.14.0-2.el7_5.5.src.rpm
x86_64: spice-debuginfo-0.14.0-2.el7_5.5.x86_64.rpm spice-server-0.14.0-2.el7_5.5.x86_64.rpm spice-server-devel-0.14.0-2.el7_5.5.x86_64.rpm
Red Hat Enterprise Linux Server (v. 7):
Source: spice-0.14.0-2.el7_5.5.src.rpm spice-gtk-0.34-3.el7_5.2.src.rpm
s390x:

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2018:2731-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2018:2731
Issue date: 2018-09-20

Topic

An update for spice and spice-gtk is now available for Red Hat EnterpriseLinux 7.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory security update buffer overflow Red Hat Enterprise Linux important spice-gtk spice

Relevant Releases Architectures

Red Hat Enterprise Linux Client (v. 7) - x86_64

Red Hat Enterprise Linux Client Optional (v. 7) - x86_64

Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64

Red Hat Enterprise Linux Server (v. 7) - s390x, x86_64

Red Hat Enterprise Linux Server Optional (v. 7) - ppc64le, s390x, x86_64

Red Hat Enterprise Linux Workstation (v. 7) - x86_64

Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64

Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) - s390x

Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) - aarch64, ppc64le, s390x

Bugs Fixed

1596008 - CVE-2018-10873 spice: Missing check in demarshal.py:write_validate_array_item() allows for buffer overflow and denial of service

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