FreeRTOS up to 10.4.2 Kernel stream_buffer.c integer overflow

CVSS Meta Temp Score
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CTI Interest Score
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7.3$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in FreeRTOS up to 10.4.2. The affected element is an unknown function of the file stream_buffer.c of the component Kernel. The manipulation leads to integer overflow. This vulnerability is referenced as CVE-2021-31572. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in FreeRTOS up to 10.4.2 and classified as critical. This issue affects some unknown processing of the file stream_buffer.c of the component Kernel. The manipulation with an unknown input leads to a integer overflow vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability.

The weakness was published 04/23/2021 as c7a9a01c94987082b223d3e59969ede64363da63. It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2021-31572. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 10.4.3 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.6

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Integer overflow
CWE: CWE-190 / CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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: FreeRTOS 10.4.3
Patch: github.com

Timelineinfo

04/22/2021 🔍
04/23/2021 +1 days 🔍
04/23/2021 +0 days 🔍
04/29/2021 +6 days 🔍

Sourcesinfo

Advisory: c7a9a01c94987082b223d3e59969ede64363da63
Status: Confirmed

CVE: CVE-2021-31572 (🔍)
GCVE (CVE): GCVE-0-2021-31572
GCVE (VulDB): GCVE-100-173795

Entryinfo

Created: 04/23/2021 08:45
Updated: 04/29/2021 08:58
Changes: 04/23/2021 08:45 (40), 04/27/2021 14:47 (5), 04/29/2021 08:58 (18)
Complete: 🔍
Cache ID: 216::103

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