CVE-2023-0030 Use after free in kernel
A local attacker can exploit a use-after-free in the nouveau driver to crash the system or escalate privileges.
- 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-2023-0030?
CVE-2023-0030 is a high-severity use after free vulnerability in Linux kernel, published on 8 Mar 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A use-after-free flaw was found in the Linux kernel’s nouveau driver in how a user triggers a memory overflow that causes the nvkm_vma_tail function to fail. This flaw allows a local user to crash or potentially escalate their privileges on the system.
Weakness: CWE-416
Which versions are affected by CVE-2023-0030?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2023-0030?
Apply the vendor's patch.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2023-0030 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-0030 exists.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2023-0030, GHSA-jm67-cprv-v6wx, ROOT-OS-UBUNTU-2204-CVE-2023-0030, ROOT-OS-UBUNTU-2404-CVE-2023-0030, UBUNTU-CVE-2023-0030.