[SECURITY] [DLA 751-1] nagios3 security update

Package : nagios3
Version : 3.4.1-3+deb7u3
CVE ID : CVE-2016-9565 CVE-2016-9566

Nagios was found to be vulnerable to two security issues that, when
combined, lead to a remote root code execution vulnerability.
Fortunately, the hardened permissions of the Debian package limit the
effect of those to information disclosure, but privilege escalation to
root is still possible locally.

CVE-2016-9565

Improper sanitization of RSS feed input enables unauthenticated
remote read and write of arbitrary files which may lead to remote
code execution if the web root is writable.

CVE-2016-9566

Unsafe logfile handling allows unprivileged users to escalate their
privileges to root. In wheezy, this is possible only through the
debug logfile which is disabled by default.

For Debian 7 "Wheezy", these problems have been fixed in version
3.4.1-3+deb7u3.

We recommend that you upgrade your nagios3 packages.

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
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