CVE-2021-27502

Texas Instruments TI-RTOS Integer Overflow or Wraparound

Description

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.

Remediation

Solution:

  • Texas Instruments CC32XX – Update to v4.40.00.07 Texas Instruments SimpleLink CC13X0 – Update to v4.10.03 https://www.ti.com/technologies/security/report-product-security-vulnerabilities.html Texas Instruments SimpleLink CC13X2-CC26X2 – Update to v4.40.00 https://www.ti.com/technologies/security/report-product-security-vulnerabilities.html Texas Instruments SimpleLink CC2640R2 – Update to v4.40.00 https://www.ti.com/technologies/security/report-product-security-vulnerabilities.html Texas Instruments SimpleLink MSP432E4 – Confirmed. No update currently planned

Category

7.4
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.06%
Third-Party Advisory cisa.gov
Affected: Texas Instruments CC32XX
Affected: Texas Instruments SimpleLink MSP432E4XX
Affected: Texas Instruments SimpleLink-CC13XX
Affected: Texas Instruments SimpleLink-CC26XX
Affected: Texas Instruments SimpleLink-CC32XX
Published at:
Updated at:

References

Link Tags
https://www.cisa.gov/news-events/ics-advisories/icsa-21-119-04 third party advisory us government resource
https://www.ti.com/tool/TI-RTOS-MCU product

Frequently Asked Questions

What is the severity of CVE-2021-27502?
CVE-2021-27502 has been scored as a high severity vulnerability.
How to fix CVE-2021-27502?
To fix CVE-2021-27502: Texas Instruments CC32XX – Update to v4.40.00.07 Texas Instruments SimpleLink CC13X0 – Update to v4.10.03 https://www.ti.com/technologies/security/report-product-security-vulnerabilities.html Texas Instruments SimpleLink CC13X2-CC26X2 – Update to v4.40.00 https://www.ti.com/technologies/security/report-product-security-vulnerabilities.html Texas Instruments SimpleLink CC2640R2 – Update to v4.40.00 https://www.ti.com/technologies/security/report-product-security-vulnerabilities.html Texas Instruments SimpleLink MSP432E4 – Confirmed. No update currently planned
Is CVE-2021-27502 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-27502 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-27502?
CVE-2021-27502 affects Texas Instruments CC32XX, Texas Instruments SimpleLink MSP432E4XX, Texas Instruments SimpleLink-CC13XX, Texas Instruments SimpleLink-CC26XX, Texas Instruments SimpleLink-CC32XX.
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