CVE-2021-1981 Memory corruption in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile

High 7.5 Published 12 Nov 2021 Updated 3 Aug 2024

A buffer over-read in Qualcomm Snapdragon firmware allows attackers to cause denial of service or disclose information via crafted network requests.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2021-1981?

CVE-2021-1981 is a high-severity memory corruption vulnerability in Qualcomm Apq8017 Firmware, published on 12 Nov 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Possible buffer over read due to improper IE size check of Bearer capability IE in MT setup request from network in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile

Weakness: CWE-125

Which versions are affected by CVE-2021-1981?

It affects 90 products.

Products include Qualcomm Apq8017 Firmware, Qualcomm Ar8035 Firmware, Qualcomm Msm8917 Firmware, Qualcomm Qca6390 Firmware, Qualcomm Qca6391 Firmware, Qualcomm Qca6421 Firmware and 84 more.

How do I fix CVE-2021-1981?

No fix has been published for CVE-2021-1981 yet. Limit exposure of the affected software until one is available.

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

Is CVE-2021-1981 being exploited?

There is no known exploitation of CVE-2021-1981 in the wild and no public exploit code.

All Qualcomm Apq8017 Firmware vulnerabilities

Sources

Also known as GHSA-xgw2-jw8v-c2pm.