CVE-2022-38457 There is an UAF vulnerability in vmwgfx driver
A local attacker can exploit a use-after-free in the vmwgfx driver to escalate privileges or cause a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2022-38457?
CVE-2022-38457 is a medium-severity use after free vulnerability in Linux kernel, published on 9 Sep 2022. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
A use-after-free(UAF) vulnerability was found in function 'vmw_cmd_res_check' in drivers/gpu/vmxgfx/vmxgfx_execbuf.c in Linux kernel's vmwgfx driver with device file '/dev/dri/renderD128 (or Dxxx)'. This flaw allows a local attacker with a user account on the system to gain privilege, causing a denial of service(DoS).
Weakness: CWE-416
Which versions are affected by CVE-2022-38457?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2022-38457?
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-2022-38457 being exploited?
There is no known exploitation of CVE-2022-38457 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-10902, DEBIAN-CVE-2022-38457, GHSA-24v2-x6vh-5fpj, ROOT-OS-DEBIAN-11-CVE-2022-38457, ROOT-OS-UBUNTU-2204-CVE-2022-38457, UBUNTU-CVE-2022-38457.