[ GLSA 200711-11 ] Nagios Plugins: Two buffer overflows

2007-11-1400:00:00

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Gentoo Linux Security Advisory GLSA 200711-11

                                        http://security.gentoo.org/

Severity: High
Title: Nagios Plugins: Two buffer overflows
Date: November 08, 2007
Bugs: #196308, #194178
ID: 200711-11

Synopsis

Two buffer overflow vulnerabilities in the Nagios Plugins might allow
for remote execution of arbitrary code.

Background

The Nagios Plugins are an official set of plugins for Nagios, an open
source host, service and network monitoring program.

Affected packages

-------------------------------------------------------------------
 Package                      /   Vulnerable   /        Unaffected
-------------------------------------------------------------------

1 net-analyzer/nagios-plugins < 1.4.10-r1 >= 1.4.10-r1

Description

fabiodds reported a boundary checking error in the "check_snmp" plugin
when processing SNMP "GET" replies that could lead to a stack-based
buffer overflow (CVE-2007-5623). Nobuhiro Ban reported a boundary
checking error in the redir() function of the "check_http" plugin when
processing HTTP "Location:" header information which might lead to a
buffer overflow (CVE-2007-5198).

Impact

A remote attacker could exploit these vulnerabilities to execute
arbitrary code with the privileges of the user running Nagios or cause
a Denial of Service by (1) sending a specially crafted SNMP "GET" reply
to the Nagios daemon or (2) sending an overly long string in the
"Location:" header of an HTTP reply. Note that to exploit (2), the
malicious or compromised web server has to be configured in Nagios and
the "-f" (follow) option has to be enabled.

Workaround

There is no known workaround at this time.

Resolution

All users of the Nagios Plugins should upgrade to the latest version:

emerge --sync

emerge -av --oneshot ">=net-analyzer/nagios-plugins-1.4.10-r1"

References

[ 1 ] CVE-2007-5198
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5198
[ 2 ] CVE-2007-5623
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5623

Availability

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

http://security.gentoo.org/glsa/glsa-200711-11.xml

Concerns?

Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
[email protected] or alternatively, you may file a bug at
http://bugs.gentoo.org.