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CVE-2019-1999

Published: 28 February 2019

In binder_alloc_free_page of binder_alloc.c, there is a possible double free due to improper locking. This could lead to local escalation of privilege in the kernel with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android. Versions: Android kernel. Android ID: A-120025196.

From the Ubuntu Security Team

It was discovered that a race condition existed in the Binder IPC driver for the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.

Priority

Medium

Cvss 3 Severity Score

7.8

Score breakdown

Status

Package Release Status
linux-aws
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(CONFIG_ANDROID_BINDER_IPC is disabled)
cosmic Not vulnerable
(CONFIG_ANDROID_BINDER_IPC is disabled)
disco Not vulnerable
(CONFIG_ANDROID_BINDER_IPC is disabled)
trusty Not vulnerable
(CONFIG_ANDROID_BINDER_IPC is disabled)
upstream
Released (5.1~rc3)
xenial Not vulnerable
(CONFIG_ANDROID_BINDER_IPC is disabled)
linux-azure
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(CONFIG_ANDROID_BINDER_IPC is disabled)
cosmic Not vulnerable
(CONFIG_ANDROID_BINDER_IPC is disabled)
disco Not vulnerable
(CONFIG_ANDROID_BINDER_IPC is disabled)
trusty Not vulnerable
(CONFIG_ANDROID_BINDER_IPC is disabled)
upstream
Released (5.1~rc3)
xenial Not vulnerable
(CONFIG_ANDROID_BINDER_IPC is disabled)
linux-aws-hwe
Launchpad, Ubuntu, Debian
bionic Does not exist

cosmic Does not exist

disco Does not exist

trusty Does not exist

upstream
Released (5.1~rc3)
xenial Not vulnerable
(CONFIG_ANDROID_BINDER_IPC is disabled)
linux-azure-edge
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(CONFIG_ANDROID_BINDER_IPC is disabled)
cosmic Does not exist

disco Does not exist

trusty Does not exist

upstream
Released (5.1~rc3)
xenial Not vulnerable
(CONFIG_ANDROID_BINDER_IPC is disabled)
linux
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(CONFIG_ANDROID_BINDER_IPC is disabled)
cosmic Not vulnerable
(CONFIG_ANDROID_BINDER_IPC is disabled)
disco
Released (5.0.0-15.16)
trusty Not vulnerable
(CONFIG_ANDROID_BINDER_IPC is disabled)
upstream
Released (5.1~rc3)
xenial Not vulnerable
(CONFIG_ANDROID_BINDER_IPC is disabled)
Patches:
Introduced by

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2

Fixed by 5cec2d2e5839f9c0fec319c523a911e0a7fd299f
linux-euclid
Launchpad, Ubuntu, Debian
bionic Does not exist

cosmic Does not exist

disco Does not exist

trusty Does not exist

upstream
Released (5.1~rc3)
xenial Ignored
(was needs-triage 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 (5.1~rc3)
xenial Ignored
(abandoned)
linux-gcp
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(CONFIG_ANDROID_BINDER_IPC is disabled)
cosmic Not vulnerable
(CONFIG_ANDROID_BINDER_IPC is disabled)
disco Not vulnerable
(CONFIG_ANDROID_BINDER_IPC is disabled)
trusty Does not exist

upstream
Released (5.1~rc3)
xenial Not vulnerable
(CONFIG_ANDROID_BINDER_IPC is disabled)
linux-gcp-edge
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(CONFIG_ANDROID_BINDER_IPC is disabled)
cosmic Does not exist

disco Does not exist

trusty Does not exist

upstream
Released (5.1~rc3)
xenial Does not exist

linux-gke
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(CONFIG_ANDROID_BINDER_IPC is disabled)
cosmic Does not exist

disco Does not exist

trusty Does not exist

upstream
Released (5.1~rc3)
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 (5.1~rc3)
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 (5.1~rc3)
xenial Does not exist

linux-hwe
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(CONFIG_ANDROID_BINDER_IPC is disabled)
cosmic Does not exist

disco Does not exist

trusty Does not exist

upstream
Released (5.1~rc3)
xenial Not vulnerable
(CONFIG_ANDROID_BINDER_IPC is disabled)
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 (5.1~rc3)
xenial Not vulnerable
(CONFIG_ANDROID_BINDER_IPC is disabled)
linux-kvm
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(CONFIG_ANDROID_BINDER_IPC is disabled)
cosmic Not vulnerable
(CONFIG_ANDROID_BINDER_IPC is disabled)
disco Not vulnerable
(CONFIG_ANDROID_BINDER_IPC is disabled)
trusty Does not exist

upstream
Released (5.1~rc3)
xenial Not vulnerable
(CONFIG_ANDROID_BINDER_IPC is disabled)
linux-lts-trusty
Launchpad, Ubuntu, Debian
bionic Does not exist

cosmic Does not exist

disco Does not exist

trusty Does not exist

upstream
Released (5.1~rc3)
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 (5.1~rc3)
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 (5.1~rc3)
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 (5.1~rc3)
xenial Does not exist

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

cosmic Does not exist

disco Does not exist

trusty Not vulnerable
(CONFIG_ANDROID_BINDER_IPC is disabled)
upstream
Released (5.1~rc3)
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 (5.1~rc3)
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 (5.1~rc3)
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 (5.1~rc3)
xenial Does not exist

linux-oem
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(CONFIG_ANDROID_BINDER_IPC is disabled)
cosmic Not vulnerable
(CONFIG_ANDROID_BINDER_IPC is disabled)
disco Not vulnerable
(CONFIG_ANDROID_BINDER_IPC is disabled)
trusty Does not exist

upstream
Released (5.1~rc3)
xenial Ignored
(end of standard support, was needs-triage)
linux-oracle
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(CONFIG_ANDROID_BINDER_IPC is disabled)
cosmic Not vulnerable
(CONFIG_ANDROID_BINDER_IPC is disabled)
disco Not vulnerable
(CONFIG_ANDROID_BINDER_IPC is disabled)
trusty Does not exist

upstream
Released (5.1~rc3)
xenial Not vulnerable
(CONFIG_ANDROID_BINDER_IPC is disabled)
linux-raspi2
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(CONFIG_ANDROID_BINDER_IPC is disabled)
cosmic Not vulnerable
(CONFIG_ANDROID_BINDER_IPC is disabled)
disco Not vulnerable
(CONFIG_ANDROID_BINDER_IPC is disabled)
trusty Does not exist

upstream
Released (5.1~rc3)
xenial Not vulnerable
(CONFIG_ANDROID_BINDER_IPC is disabled)
linux-snapdragon
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(CONFIG_ANDROID_BINDER_IPC is disabled)
cosmic Does not exist

disco Not vulnerable
(CONFIG_ANDROID_BINDER_IPC is disabled)
trusty Does not exist

upstream
Released (5.1~rc3)
xenial Not vulnerable
(CONFIG_ANDROID_BINDER_IPC is disabled)

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