VDB-131274 · CVE-2019-1998 · BID 106946

Google Android 9.0 keymaster_app.c event_handler resource consumption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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A vulnerability classified as critical has been found in Google Android 9.0 (Smartphone Operating System). Affected is the function event_handler of the file keymaster_app.c. The manipulation with an unknown input leads to a resource consumption vulnerability. CWE is classifying the issue as CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. This is going to have an impact on availability. CVE summarizes:

In event_handler of keymaster_app.c, there is possible resource exhaustion due to a table being lost on reboot. This could lead to local denial of service that is not fixed by a factory reset, with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android. Versions: Android-9. Android ID: A-116055338.

The bug was discovered 02/04/2019. The weakness was shared 02/28/2019 (Website). The advisory is available at source.android.com. This vulnerability is traded as CVE-2019-1998 since 12/10/2018. Local access is required to approach this attack. A authentication is necessary for exploitation. Technical details are known, but there is no available exploit.

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 $5k-$25k.

Applying a patch is able to eliminate this problem.







CPE 2.3info

CPE 2.2info


VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍


VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.4

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍



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

NVD Base Score: 🔍


Class: Resource consumption
CWE: CWE-400 / CWE-404

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍


Threat Intelligenceinfo

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


Recommended: Patch
Status: 🔍

0-Day Time: 🔍


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


Vendor: google.com

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

CVE: CVE-2019-1998 (🔍)
SecurityFocus: 106946

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


Created: 03/01/2019 08:32 AM
Updated: 07/26/2023 09:09 AM
Changes: 03/01/2019 08:32 AM (61), 05/13/2020 11:50 AM (2), 07/26/2023 09:09 AM (4)
Complete: 🔍
Cache ID: 3:48E:40


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