CVE-2020-25697

NameCVE-2020-25697
DescriptionA 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)

Notes

Long-standing design limitation in X11, unlikely to get fixed until the world moves to Wayland
https://www.openwall.com/lists/oss-security/2020/11/09/3

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