The remote Debian host is missing a security-related update.
Multiple vulnerabilities were discovered in Redmine, a project management web application. They could lead to remote code execution, information disclosure or cross-site scripting attacks.
Upgrade the redmine packages. For the stable distribution (stretch), these problems have been fixed in version 3.3.1-4+deb9u1. In addition, this message serves as an announcement that security support for redmine in the Debian 8 oldstable release (jessie) is now discontinued. Users of redmine in Debian 8 that want security updates are strongly encouraged to upgrade now to the current Debian 9 stable release (stretch).