Summary
Michal Srb discovered that the X.Org X server incorrectly handled shared
memory segments. An attacker able to connect to an X server, either locally
or remotely, could use this issue to crash the server, or possibly replace
shared memory segments of other X clients in the same session.
(CVE-2017-13721)
Michal Srb discovered that the X.Org X server incorrectly handled XKB
buffers. An attacker able to connect to an X server, either locally or
remotely, could use this issue to crash the server, or possibly execute
arbitrary code. (CVE-2017-13723)
Fixed packages 4
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · 14.04 LTS 14.04:LTS | xorg-server | 2:1.15.1-0ubuntu2.10 |
| Ubuntu · 14.04 LTS 14.04:LTS | xorg-server-lts-xenial | 2:1.18.3-1ubuntu2.3~trusty3 |
| Ubuntu · 16.04 LTS 16.04:LTS | xorg-server | 2:1.18.4-0ubuntu0.6 |
| Ubuntu · 16.04 LTS 16.04:LTS | xorg-server-hwe-16.04 | 2:1.19.3-1ubuntu1~16.04.3 |
Vulnerabilities 2
-
Unscored —
In X.Org Server (aka xserver and xorg-server) before 1.19.4, an attacker authenticated to an X server with the X shared…
-
Unscored —
In X.Org Server (aka xserver and xorg-server) before 1.19.4, a local attacker authenticated to the X server could overf…