USN-3453-1: X.Org X server vulnerabilities
USN-3453-1: X.Org X server vulnerabilities Ubuntu Security Notice USN-3453-1 12th October, 2017 xorg-server, xorg-server-hwe-16.04, xorg-server-lts-xenial vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 17.04 Ubuntu 16.04 LTS Ubuntu 14.04 LTS Summary Several security issues were fixed in the X.Org X server. Software description xorg-server – X.Org X11 server xorg-server-hwe-16.04 – X.Org X11 server xorg-server-lts-xenial – X.Org X11 server Details Michal Srb discovered that the X.Org X server incorrectly handled sharedmemory segments. An attacker able to connect to an X server, either locallyor remotely, could use this issue to crash the server, or possibly replaceshared memory segments of other X clients in the same session.(CVE-2017-13721) Michal Srb discovered that the X.Org X server incorrectly handled XKBbuffers. An attacker able to connect to an X server, either locally orremotely, could use this issue to crash the server, [ more… ]