CVE-2021-1887 Denial of service in Snapdragon Wired Infrastructure and Networking

High 7.5 Published 13 Jul 2021 Updated 3 Aug 2024

An assertion failure in the WLAN subsystem allows attackers to cause a denial of service via the Wi-Fi Fine Timing Measurement protocol.

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-2021-1887?

CVE-2021-1887 is a high-severity denial of service vulnerability in Qualcomm Ar9380 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

An assertion can be reached in the WLAN subsystem while using the Wi-Fi Fine Timing Measurement protocol in Snapdragon Wired Infrastructure and Networking

Weakness: CWE-617

Which versions are affected by CVE-2021-1887?

It affects 39 products.

Products include Qualcomm Ar7420 Firmware, Qualcomm Ar9380 Firmware, Qualcomm Csr8811 Firmware, Qualcomm Ipq4018 Firmware, Qualcomm Ipq4019 Firmware, Qualcomm Ipq4028 Firmware and 33 more.

How do I fix CVE-2021-1887?

No fix has been published for CVE-2021-1887 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2021-1887 being exploited?

There is no known exploitation of CVE-2021-1887 in the wild and no public exploit code.

All Qualcomm Ar9380 Firmware vulnerabilities

Sources

Also known as GHSA-mvxx-fm5q-h4f3.