JVN#88935101: X.Org Foundation X server buffer overflow vulnerability

The X.Org Foundation provides an open source implementation of the X Window System. The X server of this implementation contains a vulnerability in the handling of Portable Compiled Font (PCF) format fonts that can be exploited to cause a buffer overflow.

Impact

An attacker with an established, authenticated connection to the X server could execute arbitrary code with the privilege of X server process or cause the server to crash.

Solution

Update the Software
Apply the latest updates provided by the vendors.

Products Affected

For more information, refer to each vendor’s website.