Google Android 11.0/12.0/13.0 a2dp_sbc.cc A2DP_BuildCodecHeaderSbc out-of-bounds write

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.3$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Google Android 11.0/12.0/13.0. Affected by this vulnerability is the function A2DP_BuildCodecHeaderSbc of the file a2dp_sbc.cc. The manipulation leads to out-of-bounds write. This vulnerability is listed as CVE-2023-20952. The attack must be carried out locally. There is no available exploit. To fix this issue, it is recommended to deploy a patch. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Detailsinfo

A vulnerability was found in Google Android 11.0/12.0/13.0 (Smartphone Operating System). It has been rated as problematic. This issue affects the function A2DP_BuildCodecHeaderSbc of the file a2dp_sbc.cc. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. Using CWE to declare the problem leads to CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality. The summary by CVE is:

In A2DP_BuildCodecHeaderSbc of a2dp_sbc.cc, there is a possible out of bounds write due to a missing bounds check. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-12 Android-12L Android-13Android ID: A-186803518

The weakness was presented 03/25/2023 as A-186803518. It is possible to read the advisory at source.android.com. The identification of this vulnerability is CVE-2023-20952 since 11/03/2022. 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 09/06/2025). 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.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-25120). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.3

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/03/2022 🔍
03/25/2023 +142 days 🔍
03/25/2023 +0 days 🔍
09/06/2025 +896 days 🔍

Sourcesinfo

Vendor: google.com

Advisory: A-186803518
Status: Confirmed

CVE: CVE-2023-20952 (🔍)
GCVE (CVE): GCVE-0-2023-20952
GCVE (VulDB): GCVE-100-223883
EUVD: 🔍
scip Labs: https://www.scip.ch/en/?labs.20150917

Entryinfo

Created: 03/25/2023 08:07 AM
Updated: 09/06/2025 09:13 PM
Changes: 03/25/2023 08:07 AM (43), 04/14/2023 02:10 PM (11), 09/06/2025 09:13 PM (16)
Complete: 🔍
Cache ID: 244:ABD:40

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