CVE-2022-41218 Use after free in n/a
A use-after-free vulnerability in the Linux kernel's DVB core allows local attackers to potentially execute code or escalate privileges via refcount races.
- 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-2022-41218?
CVE-2022-41218 is a medium-severity use after free vulnerability in Debian Debian Linux, published on 21 Sep 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In drivers/media/dvb-core/dmxdev.c in the Linux kernel through 5.19.10, there is a use-after-free caused by refcount races, affecting dvb_demux_open and dvb_dmxdev_release.
Weakness: CWE-416
Which versions are affected by CVE-2022-41218?
It affects 2 products.
Linux distribution packages (1)
kernel-source openSUSE:Tumbleweed | All versions | 5.19.12-1.1 |
Products include Debian Debian Linux, Linux kernel.
How do I fix CVE-2022-41218?
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-2022-41218 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-41218 exists.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as AZL-10984, DEBIAN-CVE-2022-41218, GHSA-3mgp-qhxh-6rqh, UBUNTU-CVE-2022-41218, openSUSE-SU-2024:12373-1.