CVE-2021-33098 Denial of service in Intel(R) Ethernet ixgbe driver for Linux
An authenticated local user can cause a denial of service in the Intel ixgbe Linux driver due to improper input validation.
- 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-2021-33098?
CVE-2021-33098 is a medium-severity denial of service vulnerability in Intel(R) Ethernet ixgbe driver for Linux, published on 17 Nov 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Improper input validation in the Intel(R) Ethernet ixgbe driver for Linux before version 3.17.3 may allow an authenticated user to potentially enable denial of service via local access.
Weakness: CWE-20
Which versions are affected by CVE-2021-33098?
It affects 1 product.
Products include Intel Ethernet 500 Series Controllers Driver.
How do I fix CVE-2021-33098?
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-2021-33098 being exploited?
There is no known exploitation of CVE-2021-33098 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2021-33098, GHSA-m2q2-cqf3-9j32, OESA-2021-1465, UBUNTU-CVE-2021-33098.