CVE-2020-14360 Memory corruption in xorg-x11-server
An out-of-bounds access in X.Org Server allows local attackers to escalate privileges and compromise system integrity and availability.
- 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-2020-14360?
CVE-2020-14360 is a high-severity memory corruption vulnerability in X.org X Server, published on 20 Jan 2021. 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 X.Org Server before version 1.20.10. An out-of-bounds access in the XkbSetMap function may lead to a privilege escalation vulnerability. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Weakness: CWE-119
Which versions are affected by CVE-2020-14360?
It affects 1 product.
Products include X.org X Server.
How do I fix CVE-2020-14360?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2020-14360 being exploited?
There is no known exploitation of CVE-2020-14360 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-2022-2320 Memory corruption in xorg-x11-server
Sources
Also known as ALPINE-CVE-2020-14360, DEBIAN-CVE-2020-14360, GHSA-p2mv-74m8-hvq8, UBUNTU-CVE-2020-14360.