Nagios: Buffer overflow — GLSA 200605-07

Nagios is vulnerable to a buffer overflow which may lead to remote execution of arbitrary code.

Affected Packages

net-analyzer/nagios-core on all architectures
Affected versions < 1.4.1
Unaffected versions >= 1.4.1

Background

Nagios is an open source host, service and network monitoring program.

Description

Sebastian Krahmer of the SuSE security team discovered a buffer overflow vulnerability in the handling of a negative HTTP Content-Length header.

Impact

A buffer overflow in Nagios CGI scripts under certain web servers allows remote attackers to execute arbitrary code via a negative content length HTTP header.

Workaround

There is no known workaround at this time.

Resolution

All Nagios users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=net-analyzer/nagios-core-1.4.1"

References

Release Date
May 07, 2006

Latest Revision
May 25, 2006: 03

Severity
high

Exploitable
remote

Bugzilla entries