Package : ruby-rack Version : 1.5.2-3+deb8u3 CVE ID : CVE-2020-8161 There was a possible directory traversal vulnerability in the Rack::Directory app that is bundled with Rack. If certain directories exist in a director that is managed by `Rack::Directory`, an attacker could, using this vulnerability, read the contents of files on the server that were outside of the root specified in the Rack::Directory initializer. For Debian 8 "Jessie", this problem has been fixed in version 1.5.2-3+deb8u3. We recommend that you upgrade your ruby-rack 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 Best, Utkarsh