CVE-2017-8900
Published: 11 May 2017
LightDM through 1.22.0, when systemd is used in Ubuntu 16.10 and 17.x, allows physically proximate attackers to bypass intended AppArmor restrictions and visit the home directories of arbitrary users by establishing a guest session.
Notes
Author | Note |
---|---|
tyhicks | This issue was introduced when the user session handling moved from upstart to systemd in Ubuntu 16.10. |
Priority
Severity score breakdown
Parameter | Value |
---|---|
Base score | 4.6 |
Attack vector | Physical |
Attack complexity | Low |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | High |
Integrity impact | None |
Availability impact | None |
Vector | CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |