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Test ID:1.3.6.1.4.1.25623.1.0.69809
Category:Red Hat Local Security Checks
Title:RedHat Security Advisory RHSA-2011:0953
Summary:NOSUMMARY
Description:Description:
The remote host is missing updates announced in
advisory RHSA-2011:0953.

system-config-firewall is a graphical user interface for basic firewall
setup.

It was found that system-config-firewall used the Python pickle module in
an insecure way when sending data (via D-Bus) to the privileged back-end
mechanism. A local user authorized to configure firewall rules using
system-config-firewall could use this flaw to execute arbitrary code with
root privileges, by sending a specially-crafted serialized object.
(CVE-2011-2520)

Red Hat would like to thank Marco Slaviero of SensePost for reporting this
issue.

This erratum updates system-config-firewall to use JSON (JavaScript Object
Notation) for data exchange, instead of pickle. Therefore, an updated
version of system-config-printer that uses this new communication data
format is also provided in this erratum.

Users of system-config-firewall are advised to upgrade to these updated
packages, which contain a backported patch to resolve this issue. Running
instances of system-config-firewall must be restarted before the utility
will be able to communicate with its updated back-end.

Solution:
Please note that this update is available via
Red Hat Network. To use Red Hat Network, launch the Red
Hat Update Agent with the following command: up2date

http://rhn.redhat.com/errata/RHSA-2011-0953.html

Risk factor : High

CVSS Score:
6.0

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2011-2520
BugTraq ID: 48715
http://www.securityfocus.com/bid/48715
http://lists.fedoraproject.org/pipermail/package-announce/2011-August/063314.html
http://www.openwall.com/lists/oss-security/2011/07/18/6
http://www.redhat.com/support/errata/RHSA-2011-0953.html
http://securitytracker.com/id?1025793
http://secunia.com/advisories/45294
XForce ISS Database: systemconfigfirewall-priv-escalation(68734)
https://exchange.xforce.ibmcloud.com/vulnerabilities/68734
CopyrightCopyright (c) 2011 E-Soft Inc. http://www.securityspace.com

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