Google Android Kernel information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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4.3$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Google Android. Affected by this issue is some unknown functionality of the component Kernel. This manipulation causes information disclosure. This vulnerability appears as CVE-2017-14140. The attack requires local access. There is no available exploit. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability classified as problematic was found in Google Android (Smartphone Operating System) (affected version not known). Affected by this vulnerability is some unknown functionality of the component Kernel. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality. The summary by CVE is:

The move_pages system call in mm/migrate.c in the Linux kernel before 4.12.9 doesn t check the effective uid of the target process, enabling a local attacker to learn the memory layout of a setuid executable despite ASLR.

The bug was discovered 08/21/2017. The weakness was presented 01/02/2018 as Pixel?/?Nexus Security Bulletin - January 2018 as confirmed security bulletin (Website). The advisory is shared at source.android.com. This vulnerability is known as CVE-2017-14140 since 09/05/2017. The exploitation appears to be easy. An attack has to be approached locally. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 15 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 109380 (CentOS 7 : kernel (CESA-2018:1062)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CentOS Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 351447 (Amazon Linux Security Advisory for kernel: ALAC2012-2018-013).

Applying a patch is able to eliminate this problem. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (109380) and SecurityFocus (BID 100876†). See VDB-102802, VDB-103034, VDB-104449 and VDB-104864 for similar entries. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.3

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 109380
Nessus Name: CentOS 7 : kernel (CESA-2018:1062)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 53754
OpenVAS Name: Debian Security Advisory DSA 3981-1 (linux - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: git.kernel.org

Timelineinfo

08/21/2017 🔍
09/05/2017 +14 days 🔍
09/05/2017 +0 days 🔍
09/05/2017 +0 days 🔍
01/02/2018 +119 days 🔍
01/02/2018 +0 days 🔍
01/11/2018 +9 days 🔍
04/27/2018 +106 days 🔍
01/20/2023 +1729 days 🔍

Sourcesinfo

Vendor: google.com

Advisory: Pixel?/?Nexus Security Bulletin - January 2018
Researcher: Otto Ebeling
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-14140 (🔍)
GCVE (CVE): GCVE-0-2017-14140
GCVE (VulDB): GCVE-100-111673

OVAL: 🔍

SecurityFocus: 100876 - Linux Kernel 'mm/migrate.c' Local Information Disclosure Vulnerability

scip Labs: https://www.scip.ch/en/?labs.20150917
See also: 🔍

Entryinfo

Created: 01/11/2018 10:26
Updated: 01/20/2023 14:11
Changes: 01/11/2018 10:26 (78), 12/21/2019 17:53 (5), 01/29/2021 16:06 (2), 01/20/2023 14:11 (3)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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