CVE-2021-33096 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 improper resource isolation.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-33096?
CVE-2021-33096 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
Improper isolation of shared resources in network on chip for the Intel(R) 82599 Ethernet Controllers and Adapters may allow an authenticated user to potentially enable denial of service via local access.
Weakness: CWE-668
Which versions are affected by CVE-2021-33096?
It affects 3 products.
Products include Intel 82599eb Firmware, Intel 82599en Firmware, Intel 82599es Firmware.
How do I fix CVE-2021-33096?
No fix has been published for CVE-2021-33096 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-2021-33096 being exploited?
There is no known exploitation of CVE-2021-33096 in the wild and no public exploit code.
Other vulnerabilities in Intel(R) 82599 Ethernet Controllers and Adapters
Sources
Also known as GHSA-rchm-qq78-745r, UBUNTU-CVE-2021-33096.