CVE-2024-53228 riscv: kvm: Fix out-of-bounds array access
An out-of-bounds array access in the RISC-V KVM subsystem allows attackers to cause denial of service or potentially execute code.
- 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-2024-53228?
CVE-2024-53228 is a high-severity memory corruption vulnerability in Linux kernel, published on 27 Dec 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
riscv: kvm: Fix out-of-bounds array access
In kvm_riscv_vcpu_sbi_init() the entry->ext_idx can contain an out-of-bound index. This is used as a special marker for the base extensions, that cannot be disabled. However, when traversing the extensions, that special marker is not checked prior indexing the array.
Add an out-of-bounds check to the function.
Weakness: CWE-129
Which versions are affected by CVE-2024-53228?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-53228?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2024-53228 being exploited?
There is no known exploitation of CVE-2024-53228 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2024-53228, DEBIAN-CVE-2024-53228, GHSA-cwp6-92gh-h7h8, UBUNTU-CVE-2024-53228.