VDB-150151 · CVE-2020-0021 · GCVE-0-2020-0021

Google Android 10.0 PackageManagerService.java removeUnusedPackagesLPw null pointer dereference

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.3	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Google Android 10.0. Affected by this issue is the function removeUnusedPackagesLPw of the file PackageManagerService.java. This manipulation causes null pointer dereference. This vulnerability is handled as CVE-2020-0021. The attack can be initiated remotely. There is not any exploit available. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability has been found in Google Android 10.0 (Smartphone Operating System) and classified as critical. Affected by this vulnerability is the function removeUnusedPackagesLPw of the file PackageManagerService.java. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect availability. The summary by CVE is:

In removeUnusedPackagesLPw of PackageManagerService.java, there is a possible permanent denial-of-service due to a missing package dependency test. This could lead to remote denial of service with User execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-10Android ID: A-141413692

The weakness was released 02/13/2020. This vulnerability is known as CVE-2020-0021 since 10/17/2019. The exploitation appears to be easy. The attack can be launched remotely. The successful exploitation needs a single authentication. Technical details of the vulnerability are known, but there is no available exploit.

Applying a patch is able to eliminate this problem.

Entries connected to this vulnerability are available at VDB-150155, VDB-150154, VDB-150153 and VDB-150152. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Smartphone Operating System

Vendor

Google

Name

Android

Version

10.0

License

free

Website

Vendor: https://www.google.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.3

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/17/2019 🔍
02/13/2020 +119 days 🔍
02/14/2020 +1 days 🔍
03/31/2024 +1507 days 🔍

Sourcesinfo

Vendor: google.com

Advisory: source.android.com
Status: Not defined

CVE: CVE-2020-0021 (🔍)
GCVE (CVE): GCVE-0-2020-0021
GCVE (VulDB): GCVE-100-150151
scip Labs: https://www.scip.ch/en/?labs.20150917
See also: 🔍

Entryinfo

Created: 02/14/2020 09:21
Updated: 03/31/2024 10:24
Changes: 02/14/2020 09:21 (39), 02/14/2020 09:26 (18), 03/31/2024 10:24 (18)
Complete: 🔍
Cache ID: 216::103