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CentOS 7: CESA-2021:1265-01 Moderate: LibX11 Security Vulnerability

red hat
Calendar Grey September 17, 2012
Dist Redhat Esm H88
A minor update is now accessible for spice-gtk packages which resolves a security vulnerability that could enable possible privilege elevation.
Updated spice-gtk packages that fix one security issue are 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/articles/11258

Summary

The spice-gtk packages provide a GIMP Toolkit (GTK+) widget for SPICE (Simple Protocol for Independent Computing Environments) clients. Both Virtual Machine Manager and Virtual Machine Viewer can make use of this widget to access virtual machines using the SPICE protocol.
It was discovered that the spice-gtk setuid helper application, spice-client-glib-usb-acl-helper, did not clear the environment variables read by the libraries it uses. A local attacker could possibly use this flaw to escalate their privileges by setting specific environment variables before running the helper application. (CVE-2012-4425)
Red Hat would like to thank Sebastian Krahmer of the SUSE Security Team for reporting this issue.
All users of spice-gtk are advised to upgrade to these updated packages, which contain a backported patch to correct this issue.

Topics%20covered

Topics Covered

security advisory moderate red hat privilege escalation spice-gtk

References

https://access.redhat.com/security/cve/CVE-2012-4425 https://access.redhat.com/security/updates/classification#moderate

Package List

Red Hat Enterprise Linux Desktop (v. 6):
Source:
i386: spice-glib-0.11-11.el6_3.1.i686.rpm spice-gtk-0.11-11.el6_3.1.i686.rpm spice-gtk-debuginfo-0.11-11.el6_3.1.i686.rpm spice-gtk-python-0.11-11.el6_3.1.i686.rpm
x86_64: spice-glib-0.11-11.el6_3.1.i686.rpm spice-glib-0.11-11.el6_3.1.x86_64.rpm spice-gtk-0.11-11.el6_3.1.i686.rpm spice-gtk-0.11-11.el6_3.1.x86_64.rpm spice-gtk-debuginfo-0.11-11.el6_3.1.i686.rpm spice-gtk-debuginfo-0.11-11.el6_3.1.x86_64.rpm spice-gtk-python-0.11-11.el6_3.1.x86_64.rpm
Red Hat Enterprise Linux Desktop Optional (v. 6):
Source:
i386: spice-glib-devel-0.11-11.el6_3.1.i686.rpm spice-gtk-debuginfo-0.11-11.el6_3.1.i686.rpm spice-gtk-devel-0.11-11.el6_3.1.i686.rpm spice-gtk-tools-0.11-11.el6_3.1.i686.rpm
x86_64: spice-glib-devel-0.11-11.el6_3.1.i686.rpm spice-glib-devel-0.11-11.el6_3.1.x86_64.rpm spice-gtk-debuginfo-0.11-11.el6_3.1.i686.rpm spice-gtk-debuginfo-0.11-11.el6_3.1.x86_64.rpm spice-gtk-devel-0.11-11.el6_3.1.i686.rpm spice-gtk-devel-0.11-11.el6_3.1.x86_64.rpm spice-gtk-tools-0.11-11.el6_3.1.x86_64.rpm
Red Hat Enterprise Linux HPC Node (v. 6):
Source:
x86_64: spice-glib-0.11-11.el6_3.1.i686.rpm spice-glib-0.11-11.el6_3.1.x86_64.rpm spice-gtk-0.11-11.el6_3.1.i686.rpm spice-gtk-0.11-11.el6_3.1.x86_64.rpm

Read the Full Advisory


Advisory ID: RHSA-2012:1284-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2012:1284.html
Issue date: 2012-09-17

Topic

Updated spice-gtk packages that fix one security issue are now availablefor Red Hat Enterprise Linux 6.The Red Hat Security Response Team has rated this update as having moderatesecurity impact. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available from the CVE link inthe References section.

Topics%20covered

Topics Covered

security advisory moderate red hat privilege escalation spice-gtk

Relevant Releases Architectures

Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64

Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, 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) - i386, x86_64

Red Hat Enterprise Linux Server Optional (v. 6) - i386, x86_64

Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64

Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, x86_64

Bugs Fixed

857283 - CVE-2012-4425 spice-gtk/glib: Possible privilege escalation via un-sanitized environment variable

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