PT-2021-4215 · Texas Instruments · Ti-Rtos

Published 2021-04-29 · Updated 2023-12-01 · CVE-2021-27502

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Texas Instruments TI-RTOS (affected versions not specified)

Description The issue is related to an integer overflow vulnerability in the HeapMem allocUnprotected function. This vulnerability can be triggered when the malloc function returns a valid pointer to a small buffer for extremely large values, potentially allowing an attacker to execute arbitrary code or cause a denial of service.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Integer Overflow

Weakness Enumeration

CWE-190

Related Identifiers

BDU:2021-04818

CVE-2021-27502

Affected Products

Ti-Rtos

References · 10

• https://bdu.fstec.ru/vul/2021-04818 · Security Note
• https://osv.dev/vulnerability/CVE-2021-27502 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-27502 · Security Note
• https://t.me/cvenotify/61934 · Telegram Post
• https://cisa.gov/news-events/ics-advisories/icsa-21-119-04 · Note
• https://ti.com/lit/an/swra709/swra709.pdf?ts=1632841610387&ref_url=https%253A%252F%252Fwww.google.com%252F · Note
• https://ti.com/lit/an/swra709/swra709.pdf?ts=1632841610387&ref_url=https%253A%252F%252Fwww.google.com%252F · Note
• https://us-cert.cisa.gov/ics/advisories/icsa-21-119-04 · Note
• https://ti.com/tool/TI-RTOS-MCU · Note
• https://t.me/cvenotify/61012 · Telegram Post