CVE-2021-33061 Denial of service in Intel(R) 82599 Ethernet Controllers and Adapters
An authenticated local user can cause a denial of service in Intel 82599 Ethernet Controllers due to insufficient control flow management.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-33061?
CVE-2021-33061 is a medium-severity denial of service vulnerability in Intel(R) 82599 Ethernet Controllers and Adapters, published on 9 Feb 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Insufficient control flow management for the Intel(R) 82599 Ethernet Controllers and Adapters may allow an authenticated user to potentially enable denial of service via local access.
Which versions are affected by CVE-2021-33061?
It affects 3 products.
Products include Intel 82599eb Firmware, Intel 82599en Firmware, Intel 82599es Firmware.
How do I fix CVE-2021-33061?
Apply the vendor's patch.
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-2021-33061 being exploited?
There is no known exploitation of CVE-2021-33061 in the wild and no public exploit code.
Other vulnerabilities in Intel(R) 82599 Ethernet Controllers and Adapters
Sources
Also known as DEBIAN-CVE-2021-33061, GHSA-pvxv-cw79-c2x3, UBUNTU-CVE-2021-33061.