Debian Security Advisory DSA-3495-1 email@example.com https://www.debian.org/security/ Sebastien Delafond February 29, 2016 https://www.debian.org/security/faq
Package : xymon CVE ID : CVE-2016-2054 CVE-2016-2055 CVE-2016-2056 CVE-2016-2057 CVE-2016-2058
Markus Krell discovered that xymon, a network- and applications-monitoring system, was vulnerable to the following security issues:
The incorrect handling of user-supplied input in the "config" command can trigger a stack-based buffer overflow, resulting in denial of service (via application crash) or remote code execution.
The incorrect handling of user-supplied input in the "config" command can lead to an information leak by serving sensitive configuration files to a remote user.
The commands handling password management do not properly validate user-supplied input, and are thus vulnerable to shell command injection by a remote user.
Incorrect permissions on an internal queuing system allow a user with a local account on the xymon master server to bypass all network-based access control lists, and thus inject messages directly into xymon.
Incorrect escaping of user-supplied input in status webpages can be used to trigger reflected cross-site scripting attacks.
For the stable distribution (jessie), these problems have been fixed in version 4.3.17-6+deb8u1.
We recommend that you upgrade your xymon packages.
Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/
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