CVE-2016-9120

2016-12-0800:00:00

ubuntu.com

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

9.3 High

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

0.001 Low

EPSS

Percentile

28.7%

JSON

Race condition in the ion_ioctl function in
drivers/staging/android/ion/ion.c in the Linux kernel before 4.6 allows
local users to gain privileges or cause a denial of service
(use-after-free) by calling ION_IOC_FREE on two CPUs at the same time.

Notes

Author	Note
jdstrand	android kernels (flo, goldfish, grouper, maguro, mako and manta) are not supported on the Ubuntu Touch 14.10 and earlier preview kernels linux-lts-saucy no longer receives official support linux-lts-quantal no longer receives official support
sbeattie	at the bare minimum, this was introduced in c30707be128e952ca2ba77417cb5509e254a4aac, when the ion driver was added. we do not enable the staging ION android driver in either 3.13 or 4.4.