CVE-2000-0453

Summary

CVE-2000-0453 is a denial-of-service vulnerability affecting XFree86 versions 3.3.x and 4.0. A maliciously crafted TCP packet with a negative counter value can be sent to port 6000, causing the XFree86 server to become unresponsive and stop functioning properly. This issue may result in a denial of service to users trying to access affected systems through the X Window System. No authentication is required to exploit this vulnerability, making it a potential threat to any system running the affected XFree86 versions. Users are strongly advised to update their XFree86 installations to a patched version to mitigate this risk.

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