VDB-216228 · CVE-2022-42531 · A-231500967

Google Android gs_ldfw_load.c mmu_map_for_fw allocation of resources

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.
6.4	$0-$5k	0.00

Summaryinfo

A vulnerability described as problematic has been identified in Google Android. Affected by this issue is the function mmu_map_for_fw of the file gs_ldfw_load.c. The manipulation results in allocation of resources. This vulnerability was named CVE-2022-42531. The attack needs to be approached locally. There is no available exploit. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Google Android (Smartphone Operating System) (unknown version). Affected is the function mmu_map_for_fw of the file gs_ldfw_load.c. The manipulation with an unknown input leads to a allocation of resources vulnerability. CWE is classifying the issue as CWE-770. The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

In mmu_map_for_fw of gs_ldfw_load.c, there is a possible mitigation bypass due to Permissive Memory Allocation. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-231500967References: N/A

The weakness was presented 12/19/2022 as A-231500967. The advisory is shared for download at source.android.com. This vulnerability is traded as CVE-2022-42531 since 10/07/2022. There are known technical details, but no exploit is available.

Applying a patch is able to eliminate this problem.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Smartphone Operating System

Vendor

Google

Name

Android

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: 6.4

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Allocation of resources
CWE: CWE-770 / CWE-400 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

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

10/07/2022 🔍
12/19/2022 +73 days 🔍
12/19/2022 +0 days 🔍
04/17/2025 +850 days 🔍

Sourcesinfo

Vendor: google.com

Advisory: A-231500967
Status: Confirmed

CVE: CVE-2022-42531 (🔍)
GCVE (CVE): GCVE-0-2022-42531
GCVE (VulDB): GCVE-100-216228
scip Labs: https://www.scip.ch/en/?labs.20150917

Entryinfo

Created: 12/19/2022 09:22
Updated: 04/17/2025 23:24
Changes: 12/19/2022 09:22 (41), 04/17/2025 23:24 (27)
Complete: 🔍
Cache ID: 216::103