MediaTek LinkIt SDK up to 4.6.0 pvPortCalloc/pvPortRealloc integer overflow

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in MediaTek LinkIt SDK up to 4.6.0. This impacts the function pvPortCalloc/pvPortRealloc. Executing a manipulation can lead to integer overflow. The identification of this vulnerability is CVE-2021-30636. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in MediaTek LinkIt SDK up to 4.6.0. It has been declared as critical. This vulnerability affects the function pvPortCalloc/pvPortRealloc. 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.

The weakness was shared 01/24/2022 as icsa-21-119-04. The advisory is shared for download at cisa.gov. This vulnerability was named CVE-2021-30636 since 04/13/2021. There are known technical details, but no exploit is available.

Upgrading to version 4.6.1 eliminates this vulnerability.

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Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
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: No
Local: No
Remote: Partially

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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: LinkIt SDK 4.6.1

Timelineinfo

04/13/2021 🔍
01/24/2022 +286 days 🔍
01/24/2022 +0 days 🔍
01/27/2022 +3 days 🔍

Sourcesinfo

Advisory: icsa-21-119-04
Status: Confirmed

CVE: CVE-2021-30636 (🔍)
GCVE (CVE): GCVE-0-2021-30636
GCVE (VulDB): GCVE-100-191464

Entryinfo

Created: 01/24/2022 07:33
Updated: 01/27/2022 14:39
Changes: 01/24/2022 07:33 (40), 01/27/2022 14:39 (1)
Complete: 🔍
Cache ID: 216::103

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