CVE-2021-35084 Memory corruption in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music

Medium 5.5 Published 14 Jun 2022 Updated 4 Aug 2024

An out-of-bounds read in Qualcomm Snapdragon firmware allows attackers to disclose sensitive information or cause a denial of service.

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

What is CVE-2021-35084?

CVE-2021-35084 is a medium-severity memory corruption vulnerability in Qualcomm Aqt1000 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

Possible out of bound read due to lack of length check of data length for a DIAG event in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music

Weakness: CWE-125

Which versions are affected by CVE-2021-35084?

It affects 92 products.

Products include Qualcomm Aqt1000 Firmware, Qualcomm Ar8031 Firmware, Qualcomm Ar8035 Firmware, Qualcomm Csra6620 Firmware, Qualcomm Csra6640 Firmware, Qualcomm Csrb31024 Firmware and 86 more.

How do I fix CVE-2021-35084?

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-2021-35084 being exploited?

There is no known exploitation of CVE-2021-35084 in the wild and no public exploit code.

All Qualcomm Aqt1000 Firmware vulnerabilities

Sources

Also known as 3001178, A-204909067, GHSA-w676-j24c-pghf, PUB-A-204909067.