CVE-2013-4459

Severity: low (CVSS 3.3 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2013-11-23 · updated 2026-06-16
Weakness: CWE-264

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.

Affected products

Canonical Ubuntu Linux: 13.10
Robert Ancell Lightdm: 1.7.5, 1.7.6, 1.7.7, 1.7.8, 1.7.9, 1.7.10 (+14)

References

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

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