CVE-2021-30306 Memory corruption in Snapdragon Auto, Snapdragon Connectivity, Snapdragon Industrial IOT, Snapdragon Mobile

High 8.4 Published 20 Oct 2021 Updated 3 Aug 2024

A buffer over-read in Qualcomm Snapdragon firmware allows attackers to read sensitive memory or cause a denial of service via improper buffer allocation.

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-2021-30306?

CVE-2021-30306 is a high-severity memory corruption vulnerability in Qualcomm Apq8053 Firmware, published on 20 Oct 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Possible buffer over read due to improper buffer allocation for file length passed from user space in Snapdragon Auto, Snapdragon Connectivity, Snapdragon Industrial IOT, Snapdragon Mobile

Weakness: CWE-125

Which versions are affected by CVE-2021-30306?

It affects 65 products.

Products include Qualcomm Apq8053 Firmware, Qualcomm Msm8953 Firmware, Qualcomm Qca6174a Firmware, Qualcomm Qca6390 Firmware, Qualcomm Qca6391 Firmware, Qualcomm Qca6426 Firmware and 59 more.

How do I fix CVE-2021-30306?

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-2021-30306 being exploited?

There is no known exploitation of CVE-2021-30306 in the wild and no public exploit code.

All Qualcomm Apq8053 Firmware vulnerabilities

Sources

Also known as 2915692, A-193071117, ASB-A-193071117, GHSA-f6j5-jqwv-hqww.