CVE-2021-1971 Denial of service in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wired Infrastructure and Networking

High 7.5 Published 9 Sep 2021 Updated 3 Aug 2024

Attackers can cause a denial of service via assertion failure due to missing physical layer state validation in Qualcomm Snapdragon chipsets.

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-2021-1971?

CVE-2021-1971 is a high-severity denial of service vulnerability in Qualcomm Aqt1000 Firmware, published on 9 Sep 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Possible assertion due to lack of physical layer state validation in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wired Infrastructure and Networking

Weakness: CWE-617

Which versions are affected by CVE-2021-1971?

It affects 121 products.

Products include Qualcomm Aqt1000 Firmware, Qualcomm Ar8035 Firmware, Qualcomm Csr8811 Firmware, Qualcomm Csrb31024 Firmware, Qualcomm Ipq5010 Firmware, Qualcomm Ipq5018 Firmware and 115 more.

How do I fix CVE-2021-1971?

No fix has been published for CVE-2021-1971 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2021-1971 being exploited?

There is no known exploitation of CVE-2021-1971 in the wild and no public exploit code.

All Qualcomm Aqt1000 Firmware vulnerabilities

Sources

Also known as GHSA-4m38-6q8p-p29r.