CVE-2023-34970 Mali GPU Kernel Driver Allows Improper GPU Memory Processing Operations
A local attacker can exploit a race condition in the Mali GPU driver to access freed memory, potentially leading to privilege escalation or code execution.
- 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-2023-34970?
CVE-2023-34970 is a medium-severity use after free vulnerability in Arm Valhall Gpu Kernel Driver, published on 3 Oct 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A local non-privileged user can make improper GPU processing operations to access a limited amount outside of buffer bounds or to exploit a software race condition. If the system’s memory is carefully prepared by the user, then this in turn could give them access to already freed memory
Which versions are affected by CVE-2023-34970?
It affects 2 products.
Products include Arm Mali Gpu Kernel Driver, Arm Valhall Gpu Kernel Driver.
How do I fix CVE-2023-34970?
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-2023-34970 being exploited?
There is no known exploitation of CVE-2023-34970 in the wild and no public exploit code.
Other vulnerabilities in Arm Valhall Gpu Kernel Driver
Sources
Also known as A-287624919, ASB-A-287624919, GHSA-frqx-wxgf-37p7.