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 |