CVE-2017-13723 Memory corruption in n/a
A local attacker can overflow a buffer in X.Org Server via malformed XKB atoms, causing crashes or potential code execution.
- 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-2017-13723?
CVE-2017-13723 is a high-severity memory corruption vulnerability in Debian Debian Linux, published on 9 Oct 2017. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In X.Org Server (aka xserver and xorg-server) before 1.19.4, a local attacker authenticated to the X server could overflow a global buffer, causing crashes of the X server or potentially other problems by injecting large or malformed XKB related atoms and accessing them via xkbcomp.
Weakness: CWE-119
Which versions are affected by CVE-2017-13723?
It affects 2 products.
Products include Debian Debian Linux, X.org X Server.
How do I fix CVE-2017-13723?
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-2017-13723 being exploited?
There is no known exploitation of CVE-2017-13723 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as ALPINE-CVE-2017-13723, DEBIAN-CVE-2017-13723, GHSA-w3w2-h9f5-hrg7, UBUNTU-CVE-2017-13723.