|Category:||Red Hat Local Security Checks|
|Title:||RedHat Security Advisory RHSA-2011:0953|
The remote host is missing updates announced in
system-config-firewall is a graphical user interface for basic firewall
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.
Red Hat would like to thank Marco Slaviero of SensePost for reporting this
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.
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
Risk factor : High
Common Vulnerability Exposure (CVE) ID: CVE-2011-2520|
BugTraq ID: 48715
XForce ISS Database: systemconfigfirewall-priv-escalation(68734)
|Copyright||Copyright (c) 2011 E-Soft Inc. http://www.securityspace.com|
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