VDB-206224 · CVE-2022-20367 · A-225877459

Google Android lwis_ioctl.c construct_transaction 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.
6.5	$5k-$25k	0.00

Summaryinfo

A vulnerability was found in Google Android and classified as critical. The impacted element is the function construct_transaction of the file lwis_ioctl.c. Executing a manipulation can lead to out-of-bounds write. The identification of this vulnerability is CVE-2022-20367. The attack can only be executed locally. There is no exploit available. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability was found in Google Android (Smartphone Operating System) (the affected version is unknown). It has been declared as critical. This vulnerability affects the function construct_transaction of the file lwis_ioctl.c. 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 construct_transaction of lwis_ioctl.c, there is a possible out of bounds write due to an integer overflow. This could lead to local escalation of privilege in the kernel with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-225877459References: N/A

The weakness was shared 08/11/2022 as A-225877459. The advisory is shared for download at source.android.com. This vulnerability was named CVE-2022-20367 since 10/14/2021. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 09/10/2022). It is expected to see the exploit prices for this product increasing in the near future.

Applying a patch is able to eliminate this problem.

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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: 6.7
VulDB Meta Temp Score: 6.6

VulDB Base Score: 6.7
VulDB Temp Score: 6.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.7
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: Out-of-bounds write
CWE: CWE-787 / CWE-119
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

10/14/2021 🔍
08/11/2022 +301 days 🔍
08/11/2022 +0 days 🔍
09/10/2022 +30 days 🔍

Sourcesinfo

Vendor: google.com

Advisory: A-225877459
Status: Confirmed

CVE: CVE-2022-20367 (🔍)
GCVE (CVE): GCVE-0-2022-20367
GCVE (VulDB): GCVE-100-206224
scip Labs: https://www.scip.ch/en/?labs.20150917

Entryinfo

Created: 08/11/2022 22:11
Updated: 09/10/2022 12:16
Changes: 08/11/2022 22:11 (42), 09/10/2022 12:16 (10)
Complete: 🔍
Cache ID: 216::103