description: A vulnerability was found in X.Org. This security flaw occurs because the handler for the XIChangeProperty request has a length-validation issues, resulting in out-of-bounds memory reads and potential information disclosure. This issue can lead to local privileges elevation on systems where the X server is running privileged and remote code execution for ssh X forwarding sessions.
problem types: out-of-bounds access
affected:
{
vendor: n/a
product: xorg-x11-server
versions:
version: xorg-x11-server-1.20.4, status: affected
}