drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Mangelnde Rechteprüfung in X11
Name: |
Mangelnde Rechteprüfung in X11 |
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ID: |
USN-3500-1 |
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Distribution: |
Ubuntu |
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Plattformen: |
Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 17.04, Ubuntu 17.10 |
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Datum: |
Mi, 29. November 2017, 23:40 |
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Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-16611 |
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Applikationen: |
X11 |
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Originalnachricht |
This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --===============0345731470542815252== Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="dDmCEw7M9OHvSNEMcCGC01QGrKklIRb9C"
This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --dDmCEw7M9OHvSNEMcCGC01QGrKklIRb9C Content-Type: multipart/mixed; boundary="WJ7JgBuTe6ORGBWdaBhK9frScHNpf32qD"; protected-headers="v1" From: Marc Deslauriers <marc.deslauriers@canonical.com> Reply-To: Ubuntu Security <security@ubuntu.com> To: "ubuntu-security-announce@lists.ubuntu.com" <ubuntu-security-announce@lists.ubuntu.com> Message-ID: <d04d099c-4c6b-a016-5e51-8fe2c9273220@canonical.com> Subject: [USN-3500-1] libXfont vulnerability
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========================================================================== Ubuntu Security Notice USN-3500-1 November 29, 2017
libxfont, libxfont1, libxfont2 vulnerability ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 17.10 - Ubuntu 17.04 - Ubuntu 16.04 LTS - Ubuntu 14.04 LTS
Summary:
libXfont could be made to access arbitrary files, including special device files.
Software Description: - libxfont: X11 font rasterisation library - libxfont1: X11 font rasterisation library - libxfont2: X11 font rasterisation library
Details:
It was discovered that libXfont incorrectly followed symlinks when opening font files. A local unprivileged user could use this issue to cause the X server to access arbitrary files, including special device files.
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 17.10: libxfont1 1:1.5.2-4ubuntu1.1 libxfont2 1:2.0.1-3ubuntu1.1
Ubuntu 17.04: libxfont1 1:1.5.2-4ubuntu0.2 libxfont2 1:2.0.1-3ubuntu0.2
Ubuntu 16.04 LTS: libxfont1 1:1.5.1-1ubuntu0.16.04.4 libxfont2 1:2.0.1-3~ubuntu16.04.3
Ubuntu 14.04 LTS: libxfont1 1:1.4.7-1ubuntu0.4
After a standard system update you need to reboot your computer to make all the necessary changes.
References: https://www.ubuntu.com/usn/usn-3500-1 CVE-2017-16611
Package Information: https://launchpad.net/ubuntu/+source/libxfont/1:2.0.1-3ubuntu1.1 https://launchpad.net/ubuntu/+source/libxfont1/1:1.5.2-4ubuntu1.1 https://launchpad.net/ubuntu/+source/libxfont/1:2.0.1-3ubuntu0.2 https://launchpad.net/ubuntu/+source/libxfont1/1:1.5.2-4ubuntu0.2 https://launchpad.net/ubuntu/+source/libxfont/1:1.5.1-1ubuntu0.16.04.4 https://launchpad.net/ubuntu/+source/libxfont2/1:2.0.1-3~ubuntu16.04.3 https://launchpad.net/ubuntu/+source/libxfont/1:1.4.7-1ubuntu0.4
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