CVE-2022-48967 NFC: nci: Bounds check struct nfc_target arrays
A missing bounds check in the Linux kernel NFC subsystem allows out-of-bounds writes, potentially leading to memory corruption or system crashes.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2022-48967?
CVE-2022-48967 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:
NFC: nci: Bounds check struct nfc_target arrays
While running under CONFIG_FORTIFY_SOURCE=y, syzkaller reported:
memcpy: detected field-spanning write (size 129) of single field "target->sensf_res" at net/nfc/nci/ntf.c:260 (size 18)
This appears to be a legitimate lack of bounds checking in nci_add_new_protocol(). Add the missing checks.
Weakness: CWE-129
Which versions are affected by CVE-2022-48967?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2022-48967?
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-2022-48967 being exploited?
There is no known exploitation of CVE-2022-48967 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2022-48967, GHSA-2645-7hqp-7qr7, UBUNTU-CVE-2022-48967.