CVE-2020-25697
Published: 26 May 2021
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.
Notes
Author | Note |
---|---|
mdeslaur | as of 2021-05-19, there is no upstream fix for this issue. This is a long-standing X11 design limitation and is difficult to exploit. We will not be releasing updates for this issue. |
Priority
Severity score breakdown
Parameter | Value |
---|---|
Base score | 7.0 |
Attack vector | Local |
Attack complexity | High |
Privileges required | Low |
User interaction | None |
Scope | Unchanged |
Confidentiality | High |
Integrity impact | High |
Availability impact | High |
Vector | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |