CVE-2021-34174 Denial of service in n/a
An attacker can cause a Denial of Service on devices connected to routers using Broadcom BCM4352 or BCM43684 chips via malicious association frames.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-34174?
CVE-2021-34174 is a medium-severity denial of service vulnerability in n/a, published on 14 Jul 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability exists in Broadcom BCM4352 and BCM43684 chips. Any wireless router using BCM4352 and BCM43684 will be affected, such as ASUS AX6100. An attacker may cause a Denial of Service (DoS) to any device connected to BCM4352 or BCM43684 routers via an association or reassociation frame.
Which versions are affected by CVE-2021-34174?
It affects 2 products.
Products include Broadcom Bcm4352 Firmware, Broadcom Bcm43684 Firmware.
How do I fix CVE-2021-34174?
No fix has been published for CVE-2021-34174 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-2021-34174 being exploited?
There is no known exploitation of CVE-2021-34174 in the wild and no public exploit code.
Sources
Also known as GHSA-hffm-p5pg-4828.