Google Android 10.0/11.0/12.0 btm_sec.cc btm_sec_connected/btm_sec_disconnected use after free

CVSS Meta Temp Score
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Current Exploit Price (≈)
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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.
5.1$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Google Android 10.0/11.0/12.0. The impacted element is the function btm_sec_connected/btm_sec_disconnected of the file btm_sec.cc. The manipulation leads to use after free. This vulnerability is uniquely identified as CVE-2021-39674. Local access is required to approach this attack. No exploit exists. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability was found in Google Android 10.0/11.0/12.0 (Smartphone Operating System) and classified as critical. This issue affects the function btm_sec_connected/btm_sec_disconnected of the file btm_sec.cc. The manipulation with an unknown input leads to a use after free vulnerability. Using CWE to declare the problem leads to CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. Impacted is confidentiality, integrity, and availability.

The weakness was disclosed 02/12/2022 as A-201083442. It is possible to read the advisory at source.android.com. The identification of this vulnerability is CVE-2021-39674 since 08/23/2021. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 02/12/2022). 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.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

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

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/23/2021 🔍
02/12/2022 +173 days 🔍
02/12/2022 +0 days 🔍
02/17/2022 +5 days 🔍

Sourcesinfo

Vendor: google.com

Advisory: A-201083442
Status: Confirmed

CVE: CVE-2021-39674 (🔍)
GCVE (CVE): GCVE-0-2021-39674
GCVE (VulDB): GCVE-100-192947
scip Labs: https://www.scip.ch/en/?labs.20150917

Entryinfo

Created: 02/12/2022 10:40
Updated: 02/17/2022 07:36
Changes: 02/12/2022 10:40 (42), 02/17/2022 07:36 (1)
Complete: 🔍
Cache ID: 216::103

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