USN-6587-5: X.Org X Server vulnerabilities

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 …

advisory apis attacker crash information issue lts memory org sensitive sensitive information server ubuntu update usn vulnerabilities x.org