Versions mentioned in the description apply to the upstream
Remediation section below for
Debian:10 relevant versions.
Integer overflow in the ProcDRI2GetBuffers function in the DRI2 extension in X.Org Server (aka xserver and xorg-server) 1.7.0 through 1.16.x before 1.16.3 allows remote authenticated users to cause a denial of service (crash) or possibly execute arbitrary code via a crafted request, which triggers an out-of-bounds read or write.
xorg-server to version 2:220.127.116.111-1 or higher.