Nagios Plugins: Two buffer overflows
Gentoo Linux Security Advisory
||GLSA 200711-11 / nagios-plugins
||November 08, 2007
||November 08, 2007: 01
All supported architectures
Two buffer overflow vulnerabilities in the Nagios Plugins might allow for
remote execution of arbitrary code.
The Nagios Plugins are an official set of plugins for Nagios, an open
source host, service and network monitoring program.
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).
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.
There is no known workaround at this time.
All users of the Nagios Plugins should upgrade to the latest version:
Code Listing 3.1: Resolution
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-analyzer/nagios-plugins-1.4.10-r1"