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

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

Low

CVSS 3 base score: 7.0

Status

References

• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25697
• https://www.openwall.com/lists/oss-security/2020/11/09/3
• NVD
• Launchpad
• Debian