5
CVSSv2

CVE-2017-11565

Published: 23/07/2017 Updated: 03/10/2019
CVSS v2 Base Score: 5 | Impact Score: 2.9 | Exploitability Score: 10
CVSS v3 Base Score: 7.5 | Impact Score: 3.6 | Exploitability Score: 3.9
VMScore: 445
Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N

Vulnerability 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 malicious users 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).

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debian tor 0.2.9.11-1

Vendor Advisories

Debian Bug report logs - #869153 tor: CVE-2017-11565: aa-exec is not longer in /usr/sbin and now apparmor is silently scraped Package: src:tor; Maintainer for src:tor is Peter Palfrader <weasel@debianorg>; Reported by: Luciano Bello <luciano@debianorg> Date: Fri, 21 Jul 2017 01:15:01 UTC Severity: normal Tags: patc ...