CVE-2024-56590 Bluetooth: hci_core: Fix not checking skb length on hci_acldata_packet
A missing length check in the Linux kernel Bluetooth driver allows attackers to access invalid memory, potentially causing crashes or code execution.
- 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-2024-56590?
CVE-2024-56590 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:
Bluetooth: hci_core: Fix not checking skb length on hci_acldata_packet
This fixes not checking if skb really contains an ACL header otherwise the code may attempt to access some uninitilized/invalid memory past the valid skb->data.
Weakness: CWE-120
Which versions are affected by CVE-2024-56590?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-56590?
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-2024-56590 being exploited?
There is no known exploitation of CVE-2024-56590 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2024-56590, DEBIAN-CVE-2024-56590, GHSA-gvvj-7p7c-xphq, ROOT-OS-DEBIAN-11-CVE-2024-56590, UBUNTU-CVE-2024-56590.