#VU52787 Stack-based buffer overflow in Texas Instruments products - CVE-2021-22673

Vulnerability identifier: #VU52787

Vulnerability risk: Medium

CVSSv4.0: 5.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-22673

CWE-ID: CWE-121

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
SimpleLink MSP432E4 SDK
Hardware solutions / Firmware
SimpleLink CC32XX SDK
Hardware solutions / Firmware
SimpleLink CC13X0 SDK
Hardware solutions / Firmware
SimpleLink CC13X2 SDK
Hardware solutions / Firmware
SimpleLink CC26XX SDK
Hardware solutions / Firmware
CC3200 SDK
Hardware solutions / Firmware
CC3100 SDK
Hardware solutions / Firmware

Vendor: Texas Instruments

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when processing over-the-air firmware updates from the CDN server. A remote authenticated attacker can trigger stack-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

SimpleLink MSP432E4 SDK: 4.20.00.12

SimpleLink CC32XX SDK: 4.30.00.06

SimpleLink CC13X0 SDK: before 4.10.03

SimpleLink CC13X2 SDK: before 4.40.00

SimpleLink CC26XX SDK: before 4.40.00

CC3200 SDK: 1.5.0

CC3100 SDK: 1.3.0

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External links
https://ics-cert.us-cert.gov/advisories/icsa-21-119-01

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.