CVE-2022-48948 usb: gadget: uvc: Prevent buffer overflow in setup handler
A buffer overflow in the Linux kernel USB gadget driver allows attackers to potentially execute code or escalate privileges via crafted USB control transfers.
- 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-2022-48948?
CVE-2022-48948 is a high-severity memory corruption vulnerability in Linux kernel, published on 21 Oct 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:
usb: gadget: uvc: Prevent buffer overflow in setup handler
Setup function uvc_function_setup permits control transfer requests with up to 64 bytes of payload (UVC_MAX_REQUEST_SIZE), data stage handler for OUT transfer uses memcpy to copy req->actual bytes to uvc_event->data.data array of size 60. This may result in an overflow of 4 bytes.
Weakness: CWE-120
Which versions are affected by CVE-2022-48948?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2022-48948?
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-2022-48948 being exploited?
There is no known exploitation of CVE-2022-48948 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2022-48948, GHSA-hvf3-fq2g-9gmg, UBUNTU-CVE-2022-48948.