USN-4488-1 fixed several vulnerabilities in X.Org. This update provides the corresponding update and also the update from USN-4490-1 for Ubuntu 14.04 ESM.
Original advisory details:
Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled the input extension protocol. A local attacker could possibly use this issue to escalate privileges. (CVE-2020-14346)
Jan-Niklas Sohn discovered that the X.Org X Server incorrectly initialized memory. A local attacker could possibly use this issue to obtain sensitive information. (CVE-2020-14347)
Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled the XkbSelectEvents function. A local attacker could possibly use this issue to escalate privileges. (CVE-2020-14361)
Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled the XRecordRegisterClients function. A local attacker could possibly use this issue to escalate privileges. (CVE-2020-14362)
Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled the XkbSetNames function. A local attacker could possibly use this issue to escalate privileges. (CVE-2020-14345)
{ "availability": "No subscription required", "binaries": [ { "binary_version": "2:1.15.1-0ubuntu2.11+esm2", "binary_name": "xserver-xorg-core" }, { "binary_version": "2:1.15.1-0ubuntu2.11+esm2", "binary_name": "xorg-server-source" }, { "binary_version": "2:1.15.1-0ubuntu2.11+esm2", "binary_name": "xdmx" }, { "binary_version": "2:1.15.1-0ubuntu2.11+esm2", "binary_name": "xserver-xorg-xmir" }, { "binary_version": "2:1.15.1-0ubuntu2.11+esm2", "binary_name": "xserver-xorg-dev" }, { "binary_version": "2:1.15.1-0ubuntu2.11+esm2", "binary_name": "xvfb" }, { "binary_version": "2:1.15.1-0ubuntu2.11+esm2", "binary_name": "xnest" }, { "binary_version": "2:1.15.1-0ubuntu2.11+esm2", "binary_name": "xdmx-tools" }, { "binary_version": "2:1.15.1-0ubuntu2.11+esm2", "binary_name": "xserver-xephyr" }, { "binary_version": "2:1.15.1-0ubuntu2.11+esm2", "binary_name": "xserver-xorg-core-udeb" }, { "binary_version": "2:1.15.1-0ubuntu2.11+esm2", "binary_name": "xserver-common" } ] }