CVE-2022-0487 Use after free in kernel
A local attacker can exploit a use-after-free flaw in the Linux kernel memstick driver to compromise system confidentiality.
- 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-2022-0487?
CVE-2022-0487 is a medium-severity use after free vulnerability in Debian Debian Linux, published on 4 Feb 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A use-after-free vulnerability was found in rtsx_usb_ms_drv_remove in drivers/memstick/host/rtsx_usb_ms.c in memstick in the Linux kernel. In this flaw, a local attacker with a user privilege may impact system Confidentiality. This flaw affects kernel versions prior to 5.14 rc1.
Weakness: CWE-416
Which versions are affected by CVE-2022-0487?
It affects 3 products.
Products include Debian Debian Linux, Linux kernel, Redhat Enterprise Linux.
How do I fix CVE-2022-0487?
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-2022-0487 being exploited?
There is no known exploitation of CVE-2022-0487 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2022-0487, GHSA-g6g9-f4gj-gxqv, UBUNTU-CVE-2022-0487.