CVE-2021-30333 Memory corruption in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables

High 7.8 Published 1 Apr 2022 Updated 3 Aug 2024

Improper buffer size validation in EFS files allows memory corruption, potentially enabling code execution or privilege escalation on Snapdragon devices.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2021-30333?

CVE-2021-30333 is a high-severity memory corruption vulnerability in Qualcomm Apq8009w Firmware, published on 1 Apr 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Improper validation of buffer size input to the EFS file can lead to memory corruption in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables

Weakness: CWE-787

Which versions are affected by CVE-2021-30333?

It affects 129 products.

Products include Qualcomm Apq8009w Firmware, Qualcomm Apq8017 Firmware, Qualcomm Apq8053 Firmware, Qualcomm Apq8096au Firmware, Qualcomm Aqt1000 Firmware, Qualcomm Ar8035 Firmware and 123 more.

How do I fix CVE-2021-30333?

No fix has been published for CVE-2021-30333 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2021-30333 being exploited?

There is no known exploitation of CVE-2021-30333 in the wild and no public exploit code.

All Qualcomm Apq8009w Firmware vulnerabilities

Sources

Also known as GHSA-chvr-7r2f-642r.