CVE-2021-1945 Memory corruption in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wired Infrastructure and Networking

High 7.5 Published 13 Jul 2021 Updated 3 Aug 2024

Out-of-bounds read in Qualcomm Snapdragon firmware allows attackers to read memory or cause denial of service via malformed bandwidth information elements.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: Available

What is CVE-2021-1945?

CVE-2021-1945 is a high-severity memory corruption vulnerability in Qualcomm Apq8053 Firmware, published on 13 Jul 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Possible out of bound read due to lack of length check of Bandwidth-NSS IE in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wired Infrastructure and Networking

Weakness: CWE-125

Which versions are affected by CVE-2021-1945?

It affects 206 products.

Products include Qualcomm Apq8053 Firmware, Qualcomm Apq8064au Firmware, Qualcomm Apq8096au Firmware, Qualcomm Aqt1000 Firmware, Qualcomm Ar8031 Firmware, Qualcomm Ar8035 Firmware and 200 more.

How do I fix CVE-2021-1945?

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-2021-1945 being exploited?

There is no known exploitation of CVE-2021-1945 in the wild and no public exploit code.

All Qualcomm Apq8053 Firmware vulnerabilities

Sources

Also known as 2838849, A-184561583, ASB-A-184561583, GHSA-g3h5-9phr-7c55.