Google Android 9.0 Bluetooth Service avrcp_service.cc SendMediaUpdate/SendFolderUpdate use after free

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in Google Android 9.0. This vulnerability affects the function SendMediaUpdate/SendFolderUpdate of the file avrcp_service.cc of the component Bluetooth Service. Executing a manipulation as part of Update can lead to use after free. This vulnerability is registered as CVE-2019-2049. The attack needs to be launched locally. No exploit is available. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability has been found in Google Android 9.0 (Smartphone Operating System) and classified as critical. This vulnerability affects the function SendMediaUpdate/SendFolderUpdate of the file avrcp_service.cc of the component Bluetooth Service. The manipulation as part of a Update leads to a use after free vulnerability. The CWE definition for the vulnerability is CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

In SendMediaUpdate and SendFolderUpdate of avrcp_service.cc, there is a possible memory corruption due to a use after free. This could lead to local escalation of privilege in the Bluetooth service with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android Versions: Android-9 Android ID: A-120445479

The bug was discovered 05/06/2019. The weakness was published 05/08/2019 (Website). The advisory is shared for download at source.android.com. This vulnerability was named CVE-2019-2049 since 12/10/2018. The attack needs to be approached locally. A single authentication is required for exploitation. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 06/08/2020). It is expected to see the exploit prices for this product increasing in the near future.

The vulnerability was handled as a non-public zero-day exploit for at least 2 days. During that time the estimated underground price was around $25k-$100k.

Applying a patch is able to eliminate this problem.

Similar entries are available at VDB-134453, VDB-134495, VDB-134496 and VDB-134497. Once again VulDB remains the best source 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: 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

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

NVD Base Score: 🔍

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

12/10/2018 🔍
05/06/2019 +147 days 🔍
05/08/2019 +2 days 🔍
05/09/2019 +1 days 🔍
06/08/2020 +396 days 🔍

Sourcesinfo

Vendor: google.com

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

CVE: CVE-2019-2049 (🔍)
GCVE (CVE): GCVE-0-2019-2049
GCVE (VulDB): GCVE-100-134500
scip Labs: https://www.scip.ch/en/?labs.20150917
See also: 🔍

Entryinfo

Created: 05/09/2019 12:43
Updated: 06/08/2020 11:12
Changes: 05/09/2019 12:43 (62), 06/08/2020 11:12 (2)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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