CVE-2024-35915 nfc: nci: Fix uninit-value in nci_dev_up and nci_ntf_packet
A local attacker can trigger an uninitialized value read in the Linux kernel NFC driver, potentially leaking sensitive memory contents.
- 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-2024-35915?
CVE-2024-35915 is a high-severity vulnerability in Debian Debian Linux, published on 19 May 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: Fix uninit-value in nci_dev_up and nci_ntf_packet
syzbot reported the following uninit-value access issue [1][2]:
nci_rx_work() parses and processes received packet. When the payload length is zero, each message type handler reads uninitialized payload and KMSAN detects this issue. The receipt of a packet with a zero-size payload is considered unexpected, and therefore, such packets should be silently discarded.
This patch resolved this issue by checking payload size before calling each message type handler codes.
Weakness: CWE-908
Which versions are affected by CVE-2024-35915?
It affects 2 products.
Products include Debian Debian Linux, Linux kernel.
How do I fix CVE-2024-35915?
Apply the vendor's patch.
Is CVE-2024-35915 being exploited?
There is no known exploitation of CVE-2024-35915 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as BELL-CVE-2024-35915, DEBIAN-CVE-2024-35915, GHSA-m6cx-h2f4-5jr4, UBUNTU-CVE-2024-35915.