CVE-2017-6507 Information

Description

An issue was discovered in AppArmor before 2.12. Incorrect handling of unknown AppArmor profiles in AppArmor init scripts upstart jobs and/or systemd unit files allows an attacker to possibly have increased attack surfaces of processes that were intended to be confined by AppArmor. This is due to the common logic to handle ‘restart’ operations removing AppArmor profiles that aren’t found in the typical filesystem locations such as /etc/apparmor.d/. Userspace projects that manage their own AppArmor profiles in atypical directories such as what’s done by LXD and Docker are affected by this flaw in the AppArmor init script logic.

CVSS Vector

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Reference

http://bazaar.launchpad.net/~apparmor-dev/apparmor/master/revision/3647 http://bazaar.launchpad.net/~apparmor-dev/apparmor/master/revision/3648 http://www.securityfocus.com/bid/97223 https://bugs.launchpad.net/apparmor/+bug/1668892 https://people.canonical.com/~ubuntu-security/cve/2017/CVE-2017-6507.html

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

HIGH

Base Score

NONE

Base Severity

5.9