CVE-2022-48844 Bluetooth: hci_core: Fix leaking sent_cmd skb
A use-after-free vulnerability in the Linux kernel Bluetooth 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-2022-48844?
CVE-2022-48844 is a medium-severity use after free vulnerability in Linux kernel, published on 16 Jul 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 leaking sent_cmd skb
sent_cmd memory is not freed before freeing hci_dev causing it to leak it contents.
Weakness: CWE-416
Which versions are affected by CVE-2022-48844?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2022-48844?
Apply the vendor's patch.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2022-48844 being exploited?
There is no known exploitation of CVE-2022-48844 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2022-48844, GHSA-hg7f-jj55-6xcf, ROOT-OS-DEBIAN-11-CVE-2022-48844, UBUNTU-CVE-2022-48844.