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CVE-2018-9516

Published: 6 November 2018

In hid_debug_events_read of drivers/hid/hid-debug.c, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Product: Android Versions: Android kernel Android ID: A-71361580.

From the Ubuntu Security Team

It was discovered that the debug interface for the Linux kernel's HID subsystem did not properly perform bounds checking in some situations. An attacker with access to debugfs could use this to cause a denial of service or possibly gain additional privileges.

Notes

AuthorNote
tyhicks
HID debug events are exposed via debugfs which is only accessible by
the root user in Ubuntu

Priority

Negligible

Cvss 3 Severity Score

7.8

Score breakdown

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-44.47)
cosmic Not vulnerable
(4.17.0-6.7)
disco Not vulnerable
(4.18.0-10.11)
trusty Ignored
(was needed ESM criteria)
upstream
Released (4.18~rc5)
xenial
Released (4.4.0-134.160)
Patches:
Introduced by

cd667ce24796700e1a0e6e7528efc61c96ff832e

Fixed by 717adfdaf14704fd3ec7fa2c04520c0723247eac
linux-aws
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1032.34)
cosmic Not vulnerable
(4.18.0-1002.3)
disco Not vulnerable
(4.18.0-1002.3)
trusty
Released (4.4.0-1028.31)
upstream
Released (4.18~rc5)
xenial
Released (4.4.0-1066.76)
linux-aws-hwe
Launchpad, Ubuntu, Debian
bionic Does not exist

cosmic Does not exist

disco Does not exist

trusty Does not exist

upstream
Released (4.18~rc5)
xenial
Released (4.15.0-1032.34~16.04.1)
linux-azure
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1037.39)
cosmic Not vulnerable
(4.18.0-1003.3)
disco Not vulnerable
(4.18.0-1003.3)
trusty
Released (4.15.0-1037.39~14.04.2)
upstream
Released (4.18~rc5)
xenial
Released (4.15.0-1037.39~16.04.1)
linux-azure-edge
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1037.39)
cosmic Does not exist

disco Does not exist

trusty Does not exist

upstream
Released (4.18~rc5)
xenial
Released (4.15.0-1037.39~16.04.1)
linux-euclid
Launchpad, Ubuntu, Debian
bionic Does not exist

cosmic Does not exist

disco Does not exist

trusty Does not exist

upstream
Released (4.18~rc5)
xenial Ignored
(was needed ESM criteria)
linux-flo
Launchpad, Ubuntu, Debian
bionic Does not exist

cosmic Does not exist

disco Does not exist

trusty Does not exist
(trusty was ignored [abandoned])
upstream
Released (4.18~rc5)
xenial Ignored
(abandoned)
linux-gcp
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1027.28)
cosmic Not vulnerable
(4.18.0-1002.3)
disco Not vulnerable
(4.18.0-1002.3)
trusty Does not exist

upstream
Released (4.18~rc5)
xenial
Released (4.15.0-1027.28~16.04.1)
linux-gcp-edge
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.18.0-1004.5~18.04.1)
cosmic Does not exist

disco Does not exist

trusty Does not exist

upstream
Released (4.18~rc5)
xenial Does not exist

linux-gke
Launchpad, Ubuntu, Debian
bionic Not vulnerable

cosmic Does not exist

disco Does not exist

trusty Does not exist

upstream
Released (4.18~rc5)
xenial Ignored
(end of standard support)
linux-goldfish
Launchpad, Ubuntu, Debian
bionic Does not exist

cosmic Does not exist

disco Does not exist

trusty Does not exist
(trusty was ignored [abandoned])
upstream
Released (4.18~rc5)
xenial Ignored
(end of life)
linux-grouper
Launchpad, Ubuntu, Debian
bionic Does not exist

cosmic Does not exist

disco Does not exist

trusty Does not exist
(trusty was ignored [abandoned])
upstream
Released (4.18~rc5)
xenial Does not exist

linux-hwe
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.18.0-13.14~18.04.1)
cosmic Does not exist

disco Does not exist

trusty Does not exist

upstream
Released (4.18~rc5)
xenial
Released (4.15.0-45.48~16.04.1)
linux-hwe-edge
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(5.0.0-15.16~18.04.1)
cosmic Does not exist

disco Does not exist

trusty Does not exist

upstream
Released (4.18~rc5)
xenial
Released (4.15.0-45.48~16.04.1)
linux-kvm
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1029.29)
cosmic Not vulnerable
(4.18.0-1002.2)
disco Not vulnerable
(4.18.0-1003.3)
trusty Does not exist

upstream
Released (4.18~rc5)
xenial
Released (4.4.0-1032.38)
linux-lts-trusty
Launchpad, Ubuntu, Debian
bionic Does not exist

cosmic Does not exist

disco Does not exist

trusty Does not exist

upstream
Released (4.18~rc5)
xenial Does not exist

linux-lts-utopic
Launchpad, Ubuntu, Debian
bionic Does not exist

cosmic Does not exist

disco Does not exist

trusty Ignored
(end of life, was ignored)
upstream
Released (4.18~rc5)
xenial Does not exist

linux-lts-vivid
Launchpad, Ubuntu, Debian
bionic Does not exist

cosmic Does not exist

disco Does not exist

trusty Ignored
(end of life, was ignored)
upstream
Released (4.18~rc5)
xenial Does not exist

linux-lts-wily
Launchpad, Ubuntu, Debian
bionic Does not exist

cosmic Does not exist

disco Does not exist

trusty Ignored
(end of life, was ignored)
upstream
Released (4.18~rc5)
xenial Does not exist

linux-lts-xenial
Launchpad, Ubuntu, Debian
bionic Does not exist

cosmic Does not exist

disco Does not exist

trusty
Released (4.4.0-134.160~14.04.1)
upstream
Released (4.18~rc5)
xenial Does not exist

linux-maguro
Launchpad, Ubuntu, Debian
bionic Does not exist

cosmic Does not exist

disco Does not exist

trusty Does not exist
(trusty was ignored [abandoned])
upstream
Released (4.18~rc5)
xenial Does not exist

linux-mako
Launchpad, Ubuntu, Debian
bionic Does not exist

cosmic Does not exist

disco Does not exist

trusty Does not exist
(trusty was ignored [abandoned])
upstream
Released (4.18~rc5)
xenial Ignored
(abandoned)
linux-manta
Launchpad, Ubuntu, Debian
bionic Does not exist

cosmic Does not exist

disco Does not exist

trusty Does not exist
(trusty was ignored [abandoned])
upstream
Released (4.18~rc5)
xenial Does not exist

linux-oem
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1033.38)
cosmic
Released (4.15.0-1033.38)
disco Not vulnerable
(4.15.0-1033.38)
trusty Does not exist

upstream
Released (4.18~rc5)
xenial Ignored
(end of standard support, was needed)
linux-oracle
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1008.10)
cosmic
Released (4.15.0-1008.10)
disco Not vulnerable
(4.15.0-1008.10)
trusty Does not exist

upstream
Released (4.18~rc5)
xenial
Released (4.15.0-1008.10~16.04.1)
linux-raspi2
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1031.33)
cosmic Not vulnerable
(4.18.0-1004.6)
disco Not vulnerable
(4.18.0-1005.7)
trusty Does not exist

upstream
Released (4.18~rc5)
xenial
Released (4.4.0-1095.103)
linux-snapdragon
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1053.57)
cosmic Does not exist

disco Not vulnerable
(5.0.0-1010.10)
trusty Does not exist

upstream
Released (4.18~rc5)
xenial
Released (4.4.0-1099.104)

Severity score breakdown

Parameter Value
Base score 7.8
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H