[SECURITY] [DLA 1708-1] zabbix security update

Package : zabbix
Version : 1:2.2.23+dfsg-0+deb8u1
CVE ID : CVE-2016-10742 CVE-2017-2826

Several security vulnerabilities were discovered in Zabbix, a
server/client network monitoring solution.

CVE-2016-10742

Zabbix allowed remote attackers to redirect to external links by
misusing the request parameter.

CVE-2017-2826

An information disclosure vulnerability exists in the iConfig proxy
request of Zabbix server. A specially crafted iConfig proxy request
can cause the Zabbix server to send the configuration information of
any Zabbix proxy, resulting in information disclosure. An attacker
can make requests from an active Zabbix proxy to trigger this
vulnerability.

This update also includes several other bug fixes and improvements. For
more information please refer to the upstream changelog file.

For Debian 8 "Jessie", these problems have been fixed in version
1:2.2.23+dfsg-0+deb8u1.

We recommend that you upgrade your zabbix 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