CVE-2021-30335 Denial of service in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables, Snapdragon Wired Infrastructure and Networking

High 8.4 Published 3 Jan 2022 Updated 3 Aug 2024

An attacker can cause a denial of service via assertion failure in QOS requests due to improper validation of simultaneous updates in Qualcomm Snapdragon firmware.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: Not needed
Fix: Available

What is CVE-2021-30335?

CVE-2021-30335 is a high-severity denial of service vulnerability in Qualcomm Apq8009w Firmware, published on 3 Jan 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Possible assertion in QOS request due to improper validation when multiple add or update request are received simultaneously in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables, Snapdragon Wired Infrastructure and Networking

Weakness: CWE-617

Which versions are affected by CVE-2021-30335?

It affects 174 products.

Products include Qualcomm Apq8009w Firmware, Qualcomm Aqt1000 Firmware, Qualcomm Ar8031 Firmware, Qualcomm Ar8035 Firmware, Qualcomm Ar9380 Firmware, Qualcomm Csr8811 Firmware and 168 more.

How do I fix CVE-2021-30335?

Apply the vendor's patch.

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-2021-30335 being exploited?

There is no known exploitation of CVE-2021-30335 in the wild and no public exploit code.

All Qualcomm Apq8009w Firmware vulnerabilities

Sources

Also known as 2964455, A-199191310, ASB-A-199191310, GHSA-xqjc-v8pq-qh2x.