Date published: 2017-07-23T16:29:00.173-04:00
Date last modified: 2017-07-31T13:26:02.217-04:00
CVSS Score: 5.0
Principal attack vector: NETWORK
Reference URL: http://www.securityfocus.com/bid/99933
Summary: debian/tor.init in the Debian tor_0.2.9.11-1~deb9u1 package for Tor was designed to execute aa-exec from the standard system pathname if the apparmor package is installed, but implements this incorrectly (with a wrong assumption that the specific pathname would remain the same forever), which allows attackers to bypass intended AppArmor restrictions by leveraging the silent loss of this protection mechanism. NOTE: this does not affect systems, such as default Debian stretch installations, on which Tor startup relies on a systemd unit file (instead of this tor.init script).