CVE-2022-20021 : In Bluetooth, there is a possible application crash due to bluetooth does not pr

In Bluetooth, there is a possible application crash due to bluetooth does not properly handle the reception of multiple LMP_host_connection_req. This could lead to remote denial of service of bluetooth with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS06198513; Issue ID: ALPS06198513.

Published 2022-01-04 16:15:11

Updated 2022-01-11 19:07:53

Source MediaTek, Inc.

View at NVD, CVE.org

Vulnerability category: Denial of service

Products affected by CVE-2022-20021

Google » Android » Version: 10.0
cpe:2.3:o:google:android:10.0:*:*:*:*:*:*:*
Matching versions
When used together with: Mediatek » Awus036nh » Version: N/A
When used together with: Mediatek » Mt6580 » Version: N/A
When used together with: Mediatek » Mt6630 » Version: N/A
When used together with: Mediatek » Mt6735 » Version: N/A
When used together with: Mediatek » Mt6737 » Version: N/A
When used together with: Mediatek » Mt6739 » Version: N/A
When used together with: Mediatek » Mt6750s » Version: N/A
When used together with: Mediatek » Mt6753 » Version: N/A
When used together with: Mediatek » Mt6755s » Version: N/A
When used together with: Mediatek » Mt6757 » Version: N/A
When used together with: Mediatek » Mt6757c » Version: N/A
When used together with: Mediatek » Mt6757cd » Version: N/A
When used together with: Mediatek » Mt6757ch » Version: N/A
When used together with: Mediatek » Mt6763 » Version: N/A
When used together with: Mediatek » Mt6771 » Version: N/A
When used together with: Mediatek » Mt7662t » Version: N/A
When used together with: Mediatek » Mt7663 » Version: N/A
When used together with: Mediatek » Mt7668 » Version: N/A
When used together with: Mediatek » Mt8163 » Version: N/A
When used together with: Mediatek » Mt8167 » Version: N/A
When used together with: Mediatek » Mt8167s » Version: N/A
When used together with: Mediatek » Mt8173 » Version: N/A
When used together with: Mediatek » Mt8183 » Version: N/A
When used together with: Mediatek » Mt8321 » Version: N/A
When used together with: Mediatek » Mt8362a » Version: N/A
When used together with: Mediatek » Mt8362b » Version: N/A
When used together with: Mediatek » Mt8385 » Version: N/A
When used together with: Mediatek » Mt8765 » Version: N/A
When used together with: Mediatek » Mt8788 » Version: N/A
Google » Android » Version: 11.0
cpe:2.3:o:google:android:11.0:*:*:*:*:*:*:*
Matching versions
When used together with: Mediatek » Awus036nh » Version: N/A
When used together with: Mediatek » Mt6580 » Version: N/A
When used together with: Mediatek » Mt6630 » Version: N/A
When used together with: Mediatek » Mt6735 » Version: N/A
When used together with: Mediatek » Mt6737 » Version: N/A
When used together with: Mediatek » Mt6739 » Version: N/A
When used together with: Mediatek » Mt6750s » Version: N/A
When used together with: Mediatek » Mt6753 » Version: N/A
When used together with: Mediatek » Mt6755s » Version: N/A
When used together with: Mediatek » Mt6757 » Version: N/A
When used together with: Mediatek » Mt6757c » Version: N/A
When used together with: Mediatek » Mt6757cd » Version: N/A
When used together with: Mediatek » Mt6757ch » Version: N/A
When used together with: Mediatek » Mt6763 » Version: N/A
When used together with: Mediatek » Mt6771 » Version: N/A
When used together with: Mediatek » Mt7662t » Version: N/A
When used together with: Mediatek » Mt7663 » Version: N/A
When used together with: Mediatek » Mt7668 » Version: N/A
When used together with: Mediatek » Mt8163 » Version: N/A
When used together with: Mediatek » Mt8167 » Version: N/A
When used together with: Mediatek » Mt8167s » Version: N/A
When used together with: Mediatek » Mt8173 » Version: N/A
When used together with: Mediatek » Mt8183 » Version: N/A
When used together with: Mediatek » Mt8321 » Version: N/A
When used together with: Mediatek » Mt8362a » Version: N/A
When used together with: Mediatek » Mt8362b » Version: N/A
When used together with: Mediatek » Mt8385 » Version: N/A
When used together with: Mediatek » Mt8765 » Version: N/A
When used together with: Mediatek » Mt8788 » Version: N/A

Exploit prediction scoring system (EPSS) score for CVE-2022-20021

EPSS FAQ

0.14%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 30 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2022-20021

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
3.3	LOW	AV:A/AC:L/Au:N/C:N/I:N/A:P	6.5	2.9	NIST
Access Vector: Adjacent Network Access Complexity: Low Authentication: None Confidentiality Impact: None Integrity Impact: None Availability Impact: Partial
6.5	MEDIUM	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	2.8	3.6	NIST
Attack Vector: Adjacent Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: None Integrity: None Availability: High

References for CVE-2022-20021

https://corp.mediatek.com/product-security-bulletin/January-2022

January 2022
Vendor Advisory

CVEs referencing this url

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Vulnerability Details : CVE-2022-20021

Products affected by CVE-2022-20021

Exploit prediction scoring system (EPSS) score for CVE-2022-20021

CVSS scores for CVE-2022-20021

References for CVE-2022-20021