Vulnerability CVE-2018-9422

Vulnerability Name:

CVE-2018-9422 (CCN-152655)

Assigned:

2018-07-03

Published:

2018-07-03

Updated:

2019-08-19

Summary:

In get_futex_key of futex.c, there is a use-after-free due to improper locking. This could lead to local escalation of privilege with no additional privileges needed. User interaction is not needed for exploitation. Product: Android Versions: Android kernel Android ID: A-74250718 References: Upstream kernel.

CVSS v3 Severity:

7.8 High (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
6.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Local Attack Complexity (AC): Low Privileges Required (PR): Low User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): High Integrity (I): High Availibility (A): High

8.4 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
7.3 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Local Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): High Integrity (I): High Availibility (A): High

CVSS v2 Severity:

7.2 High (CVSS v2 Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C)

Exploitability Metrics:	Access Vector (AV): Local Access Complexity (AC): Low Authentication (Au): None
Impact Metrics:	Confidentiality (C): Complete Integrity (I): Complete Availibility (A): Complete

7.2 High (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C)

Exploitability Metrics:	Access Vector (AV): Local Access Complexity (AC): Low Athentication (Au): None
Impact Metrics:	Confidentiality (C): Complete Integrity (I): Complete Availibility (A): Complete

Vulnerability Type:

CWE-416

Vulnerability Consequences:

Gain Privileges

References:

Source: CCN
Type: Google Web site
Android

Source: MITRE
Type: CNA
CVE-2018-9422

Source: MISC
Type: UNKNOWN
https://bugzilla.suse.com/show_bug.cgi?id=1102001&_ga=2.244341506.661832603.1561012452-1774095668.1553066022

Source: XF
Type: UNKNOWN
android-cve20189422-priv-esc(152655)

Source: MLIST
Type: Third Party Advisory
[debian-lts-announce] 20180714 [SECURITY] [DLA 1422-1] linux security update

Source: MLIST
Type: Third Party Advisory
[debian-lts-announce] 20180715 [SECURITY] [DLA 1422-2] linux security update

Source: CCN
Type: Android Open Source Project
Android Security BulletinJuly 2018

Source: CONFIRM
Type: Patch, Vendor Advisory
https://source.android.com/security/bulletin/2018-07-01

Vulnerable Configuration:

Configuration 1:

cpe:/o:google:android:-:*:*:*:*:*:*:*

Configuration 2:

cpe:/o:debian:debian_linux:8.0:*:*:*:*:*:*:*

OR cpe:/o:debian:debian_linux:9.0:*:*:*:*:*:*:*

Configuration CCN 1:

cpe:/o:google:android:*:*:*:*:*:*:*:*

Denotes that component is vulnerable

Oval Definitions

Definition ID	Class	Title	Last Modified
oval:com.ubuntu.xenial:def:201894220000000	V	CVE-2018-9422 on Ubuntu 16.04 LTS (xenial) - medium.	2018-11-06
oval:com.ubuntu.xenial:def:20189422000	V	CVE-2018-9422 on Ubuntu 16.04 LTS (xenial) - medium.	2018-11-06
oval:com.ubuntu.disco:def:201894220000000	V	CVE-2018-9422 on Ubuntu 19.04 (disco) - medium.	2018-11-06
oval:com.ubuntu.bionic:def:20189422000	V	CVE-2018-9422 on Ubuntu 18.04 LTS (bionic) - medium.	2018-11-06
oval:com.ubuntu.cosmic:def:201894220000000	V	CVE-2018-9422 on Ubuntu 18.10 (cosmic) - medium.	2018-11-06
oval:com.ubuntu.cosmic:def:20189422000	V	CVE-2018-9422 on Ubuntu 18.10 (cosmic) - medium.	2018-11-06
oval:com.ubuntu.bionic:def:201894220000000	V	CVE-2018-9422 on Ubuntu 18.04 LTS (bionic) - medium.	2018-11-06
oval:com.ubuntu.trusty:def:20189422000	V	CVE-2018-9422 on Ubuntu 14.04 LTS (trusty) - medium.	2018-11-06
oval:com.ubuntu.artful:def:20189422000	V	CVE-2018-9422 on Ubuntu 17.10 (artful) - medium.	2018-07-03

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