7.8
HIGH
CVE-2021-27429
Texas Instruments TI-RTOS Heap Overflow Vulnerability
Description

Texas Instruments TI-RTOS returns a valid pointer to a small buffer on extremely large values. This can trigger an integer overflow vulnerability in 'HeapTrack_alloc' and result in code execution.

INFO

Published Date :

Nov. 20, 2023, 7:15 p.m.

Last Modified :

Dec. 1, 2023, 8:53 p.m.

Remotely Exploitable :

No

Impact Score :

5.9

Exploitability Score :

1.8
Affected Products

The following products are affected by CVE-2021-27429 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Ti real-time_operating_system
2 Ti simplelink_cc26xx_software_development_kit
3 Ti simplelink_cc32xx_software_development_kit
4 Ti simplelink_cc13xx_software_development_kit
5 Ti simplelink_msp432e401y
6 Ti simplelink_msp432e411y
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2021-27429.

URL Resource
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

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-27429 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-27429 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Dec. 01, 2023

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://www.cisa.gov/news-events/ics-advisories/icsa-21-119-04 No Types Assigned https://www.cisa.gov/news-events/ics-advisories/icsa-21-119-04 Third Party Advisory, US Government Resource
    Changed Reference Type https://www.ti.com/tool/TI-RTOS-MCU No Types Assigned https://www.ti.com/tool/TI-RTOS-MCU Product
    Added CWE NIST CWE-190
    Added CPE Configuration AND OR *cpe:2.3:o:ti:real-time_operating_system:-:*:*:*:*:*:*:* OR cpe:2.3:h:ti:cc3200:-:*:*:*:*:*:*:* cpe:2.3:h:ti:cc3220r:-:*:*:*:*:*:*:* cpe:2.3:h:ti:cc3220s:-:*:*:*:*:*:*:* cpe:2.3:h:ti:cc3220sf:-:*:*:*:*:*:*:* cpe:2.3:h:ti:cc3230s:-:*:*:*:*:*:*:* cpe:2.3:h:ti:cc3230sf:-:*:*:*:*:*:*:* cpe:2.3:h:ti:cc3235s:-:*:*:*:*:*:*:* cpe:2.3:h:ti:cc3235sf:-:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:a:ti:simplelink_cc13xx_software_development_kit:*:*:*:*:*:*:*:* versions up to (excluding) 4.40.00 *cpe:2.3:a:ti:simplelink_cc26xx_software_development_kit:*:*:*:*:*:*:*:* versions up to (excluding) 4.40.00 *cpe:2.3:a:ti:simplelink_cc32xx_software_development_kit:*:*:*:*:*:*:*:* versions up to (excluding) 4.10.03 *cpe:2.3:a:ti:simplelink_msp432e401y:-:*:*:*:*:*:*:* *cpe:2.3:a:ti:simplelink_msp432e411y:-:*:*:*:*:*:*:*
  • CVE Received by [email protected]

    Nov. 20, 2023

    Action Type Old Value New Value
    Added Description Texas Instruments TI-RTOS returns a valid pointer to a small buffer on extremely large values. This can trigger an integer overflow vulnerability in 'HeapTrack_alloc' and result in code execution.
    Added Reference ICS-CERT https://www.cisa.gov/news-events/ics-advisories/icsa-21-119-04 [No types assigned]
    Added Reference ICS-CERT https://www.ti.com/tool/TI-RTOS-MCU [No types assigned]
    Added CWE ICS-CERT CWE-190
    Added CVSS V3.1 ICS-CERT AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-27429 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2021-27429 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.04 }} 0.00%

score

0.07919

percentile

CVSS31 - Vulnerability Scoring System
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