Google Android 0.c ep0.c __dwc3_gadget_ep0_queue 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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5.1$0-$5k0.00

Summaryinfo

A vulnerability was found in Google Android 0.c. It has been declared as critical. This issue affects the function __dwc3_gadget_ep0_queue of the file ep0.c. Such manipulation leads to out-of-bounds write. This vulnerability is referenced as CVE-2021-39640. The attack can only be performed from a local environment. No exploit is available. It is best practice to apply a patch to resolve this issue.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Google Android 0.c (Smartphone Operating System). Affected by this issue is the function __dwc3_gadget_ep0_queue of the file ep0.c. 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, integrity, and availability.

The weakness was published 12/16/2021 as A-157294279. The advisory is available at source.android.com. This vulnerability is handled as CVE-2021-39640 since 08/23/2021. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 12/16/2021). 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

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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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

08/23/2021 🔍
12/16/2021 +115 days 🔍
12/16/2021 +0 days 🔍
12/18/2021 +2 days 🔍

Sourcesinfo

Vendor: google.com

Advisory: A-157294279
Status: Confirmed

CVE: CVE-2021-39640 (🔍)
GCVE (CVE): GCVE-0-2021-39640
GCVE (VulDB): GCVE-100-188390
scip Labs: https://www.scip.ch/en/?labs.20150917

Entryinfo

Created: 12/16/2021 08:46
Updated: 12/18/2021 16:03
Changes: 12/16/2021 08:46 (42), 12/18/2021 16:03 (1)
Complete: 🔍
Cache ID: 216::103

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