Google Android f2fs.h inline_data_addr integer overflow

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 labeled as critical has been found in Google Android. This impacts the function inline_data_addr of the file f2fs.h. Executing a manipulation can lead to integer overflow. This vulnerability is registered as CVE-2020-0435. 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 (Smartphone Operating System) (the affected version unknown) and classified as critical. This vulnerability affects the function inline_data_addr of the file f2fs.h. The manipulation with an unknown input leads to a integer overflow vulnerability. The CWE definition for the vulnerability is CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

In inline_data_addr of f2fs.h, there is a possible out of bounds write due to an integer overflow. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-133762747

The weakness was published 09/17/2020 (Website). The advisory is shared for download at source.android.com. This vulnerability was named CVE-2020-0435 since 10/17/2019. The exploitation appears to be difficult. The attack needs to be approached locally. A single authentication is necessary 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 09/18/2020). 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.

Similar entries are available at VDB-161473, VDB-161486, VDB-161492 and VDB-161493. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.5
VulDB Meta Temp Score: 4.3

VulDB Base Score: 4.5
VulDB Temp Score: 4.3
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: Integer overflow
CWE: CWE-190 / CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined
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

10/17/2019 🔍
09/17/2020 +336 days 🔍
09/18/2020 +1 days 🔍
09/18/2020 +0 days 🔍

Sourcesinfo

Vendor: google.com

Advisory: source.android.com
Status: Not defined

CVE: CVE-2020-0435 (🔍)
GCVE (CVE): GCVE-0-2020-0435
GCVE (VulDB): GCVE-100-161500
scip Labs: https://www.scip.ch/en/?labs.20150917
See also: 🔍

Entryinfo

Created: 09/18/2020 08:13
Updated: 09/18/2020 08:18
Changes: 09/18/2020 08:13 (39), 09/18/2020 08:18 (4)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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