drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Zwei Probleme in X11
Name: |
Zwei Probleme in X11 |
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ID: |
USN-3453-1 |
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Distribution: |
Ubuntu |
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Plattformen: |
Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 17.04 |
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Datum: |
Do, 12. Oktober 2017, 19:08 |
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Referenzen: |
https://launchpad.net/ubuntu/+source/xorg-server-lts-xenial/2:1.18.3-1ubuntu2.3~trusty3
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-13721
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-13723
https://launchpad.net/ubuntu/+source/xorg-server-hwe-16.04/2:1.19.3-1ubuntu1~16.04.3 |
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Applikationen: |
X11 |
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Originalnachricht |
This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --===============4533626650402134170== Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="TFKu13JQsv2saNCeGFNuaunpUDxGCQo9x"
This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --TFKu13JQsv2saNCeGFNuaunpUDxGCQo9x Content-Type: multipart/mixed; boundary="HWPNGIArFON4Qj7Cve75vTu51ULuIKM1h"; protected-headers="v1" From: Marc Deslauriers <marc.deslauriers@canonical.com> Reply-To: Ubuntu Security <security@ubuntu.com> To: ubuntu-security-announce@lists.ubuntu.com Message-ID: <d89cb853-4003-bc73-cbc9-6f5c74df8d7d@canonical.com> Subject: [USN-3453-1] X.Org X server vulnerabilities
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========================================================================== Ubuntu Security Notice USN-3453-1 October 12, 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 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)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 17.04: xserver-xorg-core 2:1.19.3-1ubuntu1.2
Ubuntu 16.04 LTS: xserver-xorg-core 2:1.18.4-0ubuntu0.6 xserver-xorg-core-hwe-16.04 2:1.19.3-1ubuntu1~16.04.3
Ubuntu 14.04 LTS: xserver-xorg-core 2:1.15.1-0ubuntu2.10 xserver-xorg-core-lts-xenial 2:1.18.3-1ubuntu2.3~trusty3
After a standard system update you need to reboot your computer to make all the necessary changes.
References: https://www.ubuntu.com/usn/usn-3453-1 CVE-2017-13721, CVE-2017-13723
Package Information: https://launchpad.net/ubuntu/+source/xorg-server/2:1.19.3-1ubuntu1.2 https://launchpad.net/ubuntu/+source/xorg-server/2:1.18.4-0ubuntu0.6
https://launchpad.net/ubuntu/+source/xorg-server-hwe-16.04/2:1.19.3-1ubuntu1~16.04.3 https://launchpad.net/ubuntu/+source/xorg-server/2:1.15.1-0ubuntu2.10
https://launchpad.net/ubuntu/+source/xorg-server-lts-xenial/2:1.18.3-1ubuntu2.3~trusty3
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