CVE-2017-8900

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.

CVSS v3 4.6 MEDIUM
CVSS v2.0 2.1 LOW

4.6^/10

CVSS v3 : MEDIUM

Vector : AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Exploitability : 0.9 / Impact : 3.6

Attack Vector PHYSICAL

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

2.1^/10

CVSS v2.0 : LOW

Vector : AV:L/AC:L/Au:N/C:P/I:N/A:N

Exploitability : 3.9 / Impact : 2.9

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References

Link	Resource
http://www.securityfocus.com/bid/98554	Third Party Advisory VDB Entry
https://launchpad.net/bugs/1663157	Issue Tracking Patch Vendor Advisory
https://people.canonical.com/~ubuntu-security/cve/2017/CVE-2017-8900.html	Patch Vendor Advisory
https://www.ubuntu.com/usn/usn-3285-1/	Patch Vendor Advisory
http://www.securityfocus.com/bid/98554	Third Party Advisory VDB Entry
https://launchpad.net/bugs/1663157	Issue Tracking Patch Vendor Advisory
https://people.canonical.com/~ubuntu-security/cve/2017/CVE-2017-8900.html	Patch Vendor Advisory
https://www.ubuntu.com/usn/usn-3285-1/	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:a:lightdm_project:lightdm:*:*:*:*:*:*:*:*

OR	cpe:2.3:o:canonical:ubuntu_linux:16.10:::::::*
	cpe:2.3:o:canonical:ubuntu_linux:17.04:::::::*

History

No history.

Information

Published : 2017-05-12 07:29

Updated : 2025-04-20 01:37

NVD link : CVE-2017-8900

Mitre link : CVE-2017-8900

CVE.ORG link : CVE-2017-8900

JSON object : View

Products Affected

canonical

ubuntu_linux

lightdm_project

lightdm

CWE

NVD-CWE-noinfo

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