Ubuntu 14.04 LTS USN-6587-5 Moderate: X.Org DoS Threats

A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 14.04 LTS (Available with Ubuntu Pro) Summary: Several security issues were fixed in X.Org X Server. Software Description: - xorg-server: X.Org X11 server Details: USN-6587-1 fixed several vulnerabilities in X.Org. This update provides the corresponding update for Ubuntu 14.04 LTS. Original advisory details: Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled memory when processing the RRChangeOutputProperty and RRChangeProviderProperty APIs. An attacker could possibly use this issue to cause the X Server to crash, or obtain sensitive information. (CVE-2023-6478) Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled memory when processing the DeviceFocusEvent and ProcXIQueryPointer APIs. An attacker could possibly use this issue to cause the X Server to crash, obtain sensitive information, or execute arbitrary code. (CVE-2023-6816) Jan-Niklas Sohn ...