A flaw was found in X.Org Server. An Integer underflow leading to heap-buffer overflow was found in XRecordRegisterClients may lead to a privilege escalation vulnerability.
Name: Jan-Niklas Sohn (Trend Micro Zero Day Initiative)
Upstream commit: https://gitlab.freedesktop.org/xorg/xserver/-/commit/2902b78535ecc6821cc027351818b28a5c7fdbdc
Created xorg-x11-server tracking bugs for this issue:
Affects: fedora-all [bug 1872410]
Xorg server does not run with root privileges in Red Hat Enterprise Linux 8, therefore this flaw has been rated as having moderate impact for Red Hat Enterprise linux 8.