CVE-2023-28147 Use after free in n/a
A non-privileged user can exploit a use-after-free in the Arm Mali GPU driver to gain access to 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-2023-28147?
CVE-2023-28147 is a medium-severity use after free vulnerability in Arm Valhall Gpu Kernel Driver, published on 1 Jun 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
An issue was discovered in the Arm Mali GPU Kernel Driver. A non-privileged user can make improper GPU processing operations to gain access to already freed memory. This affects Midgard r29p0 through r32p0, Bifrost r17p0 through r42p0 before r43p0, Valhall r19p0 through r42p0 before r43p0, and Arm's GPU Architecture Gen5 r41p0 through r42p0 before r43p0.
Which versions are affected by CVE-2023-28147?
It affects 4 products.
Products include Arm Avalon Gpu Kernel Driver, Arm Bifrost Gpu Kernel Driver, Arm Midgard Gpu Kernel Driver, Arm Valhall Gpu Kernel Driver.
How do I fix CVE-2023-28147?
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-2023-28147 being exploited?
There is no known exploitation of CVE-2023-28147 in the wild and no public exploit code.
Other vulnerabilities in Arm Valhall Gpu Kernel Driver
Sources
Also known as A-274005916, ASB-A-274005916, GHSA-38mh-jrc4-gqqf.