CVE-2020-25697

A privilege escalation flaw was found in the Xorg-x11-server due to a lack of authentication for X11 clients. This flaw allows an attacker to take control of an X application by impersonating the server it is expecting to connect to.

As per upstream, exploiting this flaw is non-trivial and it requires exact timing on the behalf of the attacker. Many graphical applications exit if their connection to the X server is lost, so a typical desktop session is either impossible or difficult to exploit. There is currently no upstream patch available for this flaw.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.