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ubuntuUbuntuUSN-3255-1
HistoryApr 04, 2017 - 12:00 a.m.

LightDM vulnerability

2017-04-0400:00:00
ubuntu.com
115

CVSS2

6.9

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:M/Au:N/C:C/I:C/A:C

CVSS3

7.3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

7.4

Confidence

High

EPSS

0.001

Percentile

26.8%

JSON

Releases

  • Ubuntu 16.10
  • Ubuntu 16.04 ESM

Packages

  • lightdm - Display Manager

Details

It was discovered that LightDM incorrectly handled home directory creation for
guest users. A local attacker could use this issue to gain ownership of
arbitrary directory paths and possibly gain administrative privileges.

OSVersionArchitecturePackageVersionFilename
Ubuntu16.10noarchlightdm<Β 1.19.5-0ubuntu1.1UNKNOWN
Ubuntu16.10noarchgir1.2-lightdm-1<Β 1.19.5-0ubuntu1.1UNKNOWN
Ubuntu16.10noarchliblightdm-gobject-1-0<Β 1.19.5-0ubuntu1.1UNKNOWN
Ubuntu16.10noarchliblightdm-gobject-1-0-dbgsym<Β 1.19.5-0ubuntu1.1UNKNOWN
Ubuntu16.10noarchliblightdm-gobject-1-dev<Β 1.19.5-0ubuntu1.1UNKNOWN
Ubuntu16.10noarchliblightdm-gobject-1-doc<Β 1.19.5-0ubuntu1.1UNKNOWN
Ubuntu16.10noarchliblightdm-qt-3-0<Β 1.19.5-0ubuntu1.1UNKNOWN
Ubuntu16.10noarchliblightdm-qt-3-0-dbgsym<Β 1.19.5-0ubuntu1.1UNKNOWN
Ubuntu16.10noarchliblightdm-qt-dev<Β 1.19.5-0ubuntu1.1UNKNOWN
Ubuntu16.10noarchliblightdm-qt5-3-0<Β 1.19.5-0ubuntu1.1UNKNOWN
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CVSS2

6.9

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:M/Au:N/C:C/I:C/A:C

CVSS3

7.3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

7.4

Confidence

High

EPSS

0.001

Percentile

26.8%

JSON
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