The X Input Method (XIM) client implementation in libX11 has some integer overflows and signed/unsigned comparison issues that can lead to heap corruption when handling malformed messages from an input method (CVE-2020-14344).
The libx11 package has been updated to version 1.6.10 which fixes this issue.
The x11-proto-devel package has been updated to remove the "/usr/include/X11/extensions/XKBgeom.h" header file which has been moved to the libx11-devel package.