Design/Logic Flaw

2016-05-0210:59:00

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7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

6.8 Medium

AI Score

Confidence

Low

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

0.0004 Low

EPSS

Percentile

11.0%

JSON

The overlayfs implementation in the Linux kernel through 4.5.2 does not properly restrict the mount namespace, which allows local users to gain privileges by mounting an overlayfs filesystem on top of a FUSE filesystem, and then executing a crafted setuid program.

CPENameOperatorVersion
ubuntu_coreeq15.04
ubuntu_linuxeq16.10
ubuntu_linuxeq12.04
ubuntu_linuxeq16.04
ubuntu_linuxeq15.10
ubuntu_linuxeq14.04
ubuntu_toucheq15.04
linux_kernelle4.5.2

Name	Operator	Version
ubuntu_core	eq	15.04
ubuntu_linux	eq	16.10
ubuntu_linux	eq	12.04
ubuntu_linux	eq	16.04
ubuntu_linux	eq	15.10
ubuntu_linux	eq	14.04
ubuntu_touch	eq	15.04
linux_kernel	le	4.5.2