CVE-2021-30313 Use after free 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

Medium 6.7 Published 13 Jan 2022 Updated 3 Aug 2024

A race condition in wired connectivity allows use-after-free, potentially enabling code execution or privilege escalation on Qualcomm Snapdragon devices.

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

What is CVE-2021-30313?

CVE-2021-30313 is a medium-severity use after free vulnerability in Qualcomm Apq8096au Firmware, published on 13 Jan 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Use after free condition can occur in wired connectivity due to a race condition while creating and deleting folders 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-416, CWE-362

Which versions are affected by CVE-2021-30313?

It affects 180 products.

Products include Qualcomm Apq8096au Firmware, Qualcomm Ar8031 Firmware, Qualcomm Ar8035 Firmware, Qualcomm Ar9380 Firmware, Qualcomm Csr8811 Firmware, Qualcomm Csra6620 Firmware and 174 more.

How do I fix CVE-2021-30313?

Apply the vendor's patch.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2021-30313 being exploited?

There is no known exploitation of CVE-2021-30313 in the wild and no public exploit code.

All Qualcomm Apq8096au Firmware vulnerabilities

Sources

Also known as 2878995, A-178720043, GHSA-pqcw-x89x-vfmm, PUB-A-178720043.