VDB-131266 · CVE-2019-1988 · BID 106842

Google Android 8.0/8.1/9.0 System_server SkSwizzler.cpp sample6 out-of-bounds write

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.
8.6	$5k-$25k	0.00

A vulnerability classified as critical was found in Google Android 8.0/8.1/9.0 (Smartphone Operating System). This vulnerability affects the function sample6 of the file SkSwizzler.cpp of the component System_server. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. The CWE definition for the vulnerability is CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

In sample6 of SkSwizzler.cpp, there is a possible out of bounds write due to improper input validation. This could lead to remote code execution in system_server with no additional execution privileges needed. User interaction is needed for exploitation. Product: Android. Versions: Android-8.0 Android-8.1 Android-9. Android ID: A-118372692.

The bug was discovered 02/04/2019. The weakness was released 02/28/2019 (Website). The advisory is available at source.android.com. This vulnerability was named CVE-2019-1988 since 12/10/2018. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 07/26/2023). It is expected to see the exploit prices for this product increasing in the near future.

The vulnerability was handled as a non-public zero-day exploit for at least 24 days. During that time the estimated underground price was around $25k-$100k.

Applying a patch is able to eliminate this problem.

Entries connected to this vulnerability are available at VDB-131264, VDB-131265, VDB-131267 and VDB-131268. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Smartphone Operating System

Vendor

Google

Name

Android

Version

License

free

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.6

VulDB Base Score: 8.8
VulDB Temp Score: 8.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

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

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

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

12/10/2018 🔍
02/04/2019 +56 days 🔍
02/28/2019 +24 days 🔍
03/01/2019 +1 days 🔍
07/26/2023 +1608 days 🔍

Sourcesinfo

Vendor: google.com

Advisory: source.android.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2019-1988 (🔍)
GCVE (CVE): GCVE-0-2019-1988
GCVE (VulDB): GCVE-100-131266
SecurityFocus: 106842

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

Entryinfo

Created: 03/01/2019 06:33 AM
Updated: 07/26/2023 08:50 AM
Changes: 03/01/2019 06:33 AM (61), 05/13/2020 11:11 AM (2), 07/26/2023 08:50 AM (4)
Complete: 🔍
Cache ID: 18:F99:40