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ubuntuUbuntuUSN-3802-1
HistoryOct 26, 2018 - 12:00 a.m.

X.Org X server vulnerability

2018-10-2600:00:00
ubuntu.com
846

6.6 Medium

CVSS3

Attack Vector

PHYSICAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

7.5 High

AI Score

Confidence

High

7.2 High

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

0.032 Low

EPSS

Percentile

91.1%

Releases

  • Ubuntu 18.10
  • Ubuntu 18.04 ESM
  • Ubuntu 16.04 ESM

Packages

  • xorg-server - X.Org X11 server
  • xorg-server-hwe-16.04 - X.Org X11 server

Details

Narendra Shinde discovered that the X.Org X server incorrectly handled
certain command line parameters when running as root with the legacy
wrapper. When certain graphics drivers are being used, a local attacker
could possibly use this issue to overwrite arbitrary files and escalate
privileges.

OSVersionArchitecturePackageVersionFilename
Ubuntu18.10noarchxserver-xorg-core< 2:1.20.1-3ubuntu2.1UNKNOWN
Ubuntu18.10noarchxdmx< 2:1.20.1-3ubuntu2.1UNKNOWN
Ubuntu18.10noarchxdmx-dbgsym< 2:1.20.1-3ubuntu2.1UNKNOWN
Ubuntu18.10noarchxdmx-tools< 2:1.20.1-3ubuntu2.1UNKNOWN
Ubuntu18.10noarchxdmx-tools-dbgsym< 2:1.20.1-3ubuntu2.1UNKNOWN
Ubuntu18.10noarchxnest< 2:1.20.1-3ubuntu2.1UNKNOWN
Ubuntu18.10noarchxnest-dbgsym< 2:1.20.1-3ubuntu2.1UNKNOWN
Ubuntu18.10noarchxorg-server-source< 2:1.20.1-3ubuntu2.1UNKNOWN
Ubuntu18.10noarchxserver-common< 2:1.20.1-3ubuntu2.1UNKNOWN
Ubuntu18.10noarchxserver-xephyr< 2:1.20.1-3ubuntu2.1UNKNOWN
Rows per page:
1-10 of 551

6.6 Medium

CVSS3

Attack Vector

PHYSICAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

7.5 High

AI Score

Confidence

High

7.2 High

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

0.032 Low

EPSS

Percentile

91.1%