Vulnerability CVE-2013-4459
Published: 2013-11-23

Description:
LightDM 1.7.5 through 1.8.3 and 1.9.x before 1.9.2 does not apply the AppArmor profile to the Guest account, which allows local users to bypass intended restrictions by leveraging the Guest account.

Type:

CWE-264

 (Permissions, Privileges, and Access Controls)

CVSS2 => (AV:L/AC:M/Au:N/C:P/I:P/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
3.3/10
4.9/10
3.4/10
Exploit range
Attack complexity
Authentication
Local
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
None
Affected software
Robert ancell -> Lightdm 
Canonical -> Ubuntu linux 

 References:
https://bugs.launchpad.net/ubuntu/%2Bsource/lightdm/%2Bbug/1243339
http://www.ubuntu.com/usn/USN-2012-1
http://lists.freedesktop.org/archives/lightdm/2013-October/000472.html
http://lists.freedesktop.org/archives/lightdm/2013-October/000471.html
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