CVE-2022-1419 Use after free in kernel
A use-after-free vulnerability in the Linux kernel's vgem driver allows local attackers to execute arbitrary code or escalate privileges.
- 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-2022-1419?
CVE-2022-1419 is a high-severity use after free vulnerability in Debian Debian Linux, published on 31 May 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The root cause of this vulnerability is that the ioctl$DRM_IOCTL_MODE_DESTROY_DUMB can decrease refcount of *drm_vgem_gem_object *(created in *vgem_gem_dumb_create*) concurrently, and *vgem_gem_dumb_create *will access the freed drm_vgem_gem_object.
Weakness: CWE-416
Which versions are affected by CVE-2022-1419?
It affects 2 products.
Products include Debian Debian Linux, Linux kernel.
How do I fix CVE-2022-1419?
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-2022-1419 being exploited?
There is no known exploitation of CVE-2022-1419 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as A-235540888, DEBIAN-CVE-2022-1419, GHSA-r5wp-fr43-744h, PUB-A-235540888, UBUNTU-CVE-2022-1419.