CVE-2021-35092 Memory corruption in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music

Medium 6.7 Published 14 Jun 2022 Updated 4 Aug 2024

A memory corruption vulnerability in Qualcomm Snapdragon firmware allows arbitrary address modification via IOCTL requests, potentially enabling code execution or privilege escalation.

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-2021-35092?

CVE-2021-35092 is a medium-severity memory corruption vulnerability in Qualcomm Apq8053 Firmware, published on 14 Jun 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Processing DCB/AVB algorithm with an invalid queue index from IOCTL request could lead to arbitrary address modification in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music

Weakness: CWE-20

Which versions are affected by CVE-2021-35092?

It affects 83 products.

Products include Qualcomm Apq8053 Firmware, Qualcomm Apq8096au Firmware, Qualcomm Aqt1000 Firmware, Qualcomm Ar8031 Firmware, Qualcomm Ar8035 Firmware, Qualcomm Csra6620 Firmware and 77 more.

How do I fix CVE-2021-35092?

Apply the vendor's patch.

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

Is CVE-2021-35092 being exploited?

There is no known exploitation of CVE-2021-35092 in the wild and no public exploit code.

All Qualcomm Apq8053 Firmware vulnerabilities

Sources

Also known as 2985885, A-204909309, GHSA-f266-v5mw-4629, PUB-A-204909309.