Texas Instruments CC32XX prior 4.10.03/4.40.00/ HeapMem_allocUnprotected integer overflow

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A vulnerability was found in Texas Instruments CC32XX, SimpleLink MSP432E4XX, SimpleLink-CC13XX, SimpleLink-CC26XX and SimpleLink-CC32XX. It has been classified as critical. Affected is the function HeapMem_allocUnprotected. The manipulation with an unknown input leads to a integer overflow vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Texas Instruments TI-RTOS, when configured to use HeapMem heap(default), malloc returns a valid pointer to a small buffer on extremely large values, which can trigger an integer overflow vulnerability in 'HeapMem_allocUnprotected' and result in code execution.

The weakness was disclosed 11/20/2023 by David Atch, Omri Ben Bassat and Tamir Ariel as icsa-21-119-04. The advisory is shared for download at cisa.gov. This vulnerability is traded as CVE-2021-22636 since 01/05/2021. There are known technical details, but no exploit is available.

Upgrading to version 4.10.03, 4.40.00 or eliminates this vulnerability.

The entries VDB-198928, VDB-198929, VDB-198930 and VDB-198940 are pretty similar.




CPE 2.3info

CPE 2.2info


VulDB CVSS-B Score: 🔒
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VulDB Meta Base Score: 7.4
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.0
VulDB Temp Score: 6.7
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.8
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CNA Base Score: 7.4
CNA Vector (ICS-CERT): 🔒



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Class: Integer overflow
CWE: CWE-190 / CWE-189

Local: Yes
Remote: No

Availability: 🔒
Status: Not defined

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Price Prediction: 🔍
Current Price Estimation: 🔒


Threat Intelligenceinfo

Interest: 🔍
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Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: CC32XX/SimpleLink MSP432E4XX/SimpleLink-CC13XX/SimpleLink-CC26XX/SimpleLink-CC32XX 4.10.03/4.40.00/


01/05/2021 CVE reserved
11/20/2023 +1049 days Advisory disclosed
11/20/2023 +0 days VulDB entry created
12/14/2023 +24 days VulDB entry last update


Advisory: icsa-21-119-04
Researcher: David Atch, Omri Ben Bassat, Tamir Ariel
Status: Confirmed

CVE: CVE-2021-22636 (🔒)
See also: 🔒


Created: 11/20/2023 08:44 PM
Updated: 12/14/2023 05:23 PM
Changes: 11/20/2023 08:44 PM (50), 12/14/2023 05:23 PM (11)
Complete: 🔍
Cache ID: 35:6E8:40


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