CVE-2021-22671 Integer overflow in SimpleLink Wi-Fi, MSP432, CC13XX, CC26XX, CC32XX, CC3100

Critical 9.8 Published 7 May 2021 Updated 3 Aug 2024

Integer overflows in SimpleLink Wi-Fi SDKs allow remote code execution via long domain names, affecting IoT developers using affected SDKs.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2021-22671?

CVE-2021-22671 is a critical vulnerability in SimpleLink Wi-Fi, MSP432, CC13XX, CC26XX, CC32XX, CC3100, published on 7 May 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Multiple integer overflow issues exist while processing long domain names, which may allow an attacker to remotely execute code on the SimpleLink Wi-Fi (MSP432E4 SDK: v4.20.00.12 and prior, CC32XX SDK v4.30.00.06 and prior, CC13X0 SDK versions prior to v4.10.03, CC13X2 and CC26XX SDK versions prior to v4.40.00, CC3200 SDK v1.5.0 and prior, CC3100 SDK v1.3.0 and prior).

Weakness: CWE-190

Which versions are affected by CVE-2021-22671?

It affects 7 products.

Products include Ti Cc3100 Software Development Kit, Ti Cc3200 Software Development Kit, Ti Simplelink Cc13x0 Software Development Kit, Ti Simplelink Cc13x2 Software Development Kit, Ti Simplelink Cc26xx Software Development Kit, Ti Simplelink Cc32xx Software Development Kit and 1 more.

How do I fix CVE-2021-22671?

No fix has been published for CVE-2021-22671 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-22671 being exploited?

There is no known exploitation of CVE-2021-22671 in the wild and no public exploit code.

Sources

Also known as GHSA-522g-m586-xw25.