CVE-2020-14347

Se encontró un fallo en la manera en que la memoria de xserver no fue inicializada apropiadamente. Esto podría filtrar partes de la memoria del servidor hacia cliente X. En los casos en que el servidor Xorg se ejecuta con privilegios elevados, esto podría resultar en una posible omisión de ASLR. Xorg-server anterior a la versión 1.20.9 es vulnerable

A flaw was found in the way the Xserver memory was not properly initialized. This issue leak parts of server memory to the X client. In cases where the Xorg server runs with elevated privileges, this flaw results in a possible ASLR bypass.

This vulnerability allows local attackers to disclose sensitive information on affected installations of X.Org Server. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.
The specific flaw exists within the processing of pixel data. The issue results from the lack of proper initialization of memory prior to accessing it. An attacker can leverage this in conjunction with other vulnerabilities to escalate privileges and execute code in the context of root.