CVE-2022-2320 Memory corruption in xorg-x11-server
An attacker can exploit a buffer overflow in the Xorg X11 server to execute arbitrary code and escalate privileges to root.
- 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-2022-2320?
CVE-2022-2320 is a high-severity memory corruption vulnerability in X.org X Server, published on 1 Sep 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A flaw was found in the Xorg-x11-server. The specific flaw exists within the handling of ProcXkbSetDeviceInfo requests. The issue results from the lack of proper validation of user-supplied data, which can result in a memory access past the end of an allocated buffer. This flaw allows an attacker to escalate privileges and execute arbitrary code in the context of root.
Weakness: CWE-787
Which versions are affected by CVE-2022-2320?
It affects 1 product.
Products include X.org X Server.
How do I fix CVE-2022-2320?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2022-2320 being exploited?
There is no known exploitation of CVE-2022-2320 in the wild and no public exploit code.
Other vulnerabilities in X.org X Server
- CVE-2026-56000 xorg-x11-server / xwayland GLX contextTags Use-After-Free in CommonMakeCurrent()
- CVE-2017-10971 Memory corruption in n/a
- CVE-2026-55999 xorg-server / xwayland glamor font atlas Heap Buffer Overflow
- CVE-2022-2319 Memory corruption in xorg-x11-server
- CVE-2020-14360 Memory corruption in xorg-x11-server
Sources
Also known as AZL-44841, DEBIAN-CVE-2022-2320, GHSA-w5qv-457x-4w67, OESA-2024-1817, OESA-2024-1818, OESA-2024-1819 and 1 more.