drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Mehrere Probleme in Linux (Aktualisierung)
Name: |
Mehrere Probleme in Linux (Aktualisierung) |
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ID: |
USN-2909-2 |
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Distribution: |
Ubuntu |
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Plattformen: |
Ubuntu 14.04 LTS |
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Datum: |
Sa, 27. Februar 2016, 10:30 |
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Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-1576
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-1575
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8785 |
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Applikationen: |
Linux |
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Update von: |
Mehrere Probleme in Linux |
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Originalnachricht |
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========================================================================== Ubuntu Security Notice USN-2909-2 February 27, 2016
linux-lts-utopic regression ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 14.04 LTS
Summary:
USN-2909-1 introduced a regression in the Ubuntu 14.10 Linux kernel backported to Ubuntu 14.04 LTS.
Software Description: - linux-lts-utopic: Linux hardware enablement kernel from Utopic for Trusty
Details:
USN-2909-1 fixed vulnerabilities in the Ubuntu 14.10 Linux kernel backported to Ubuntu 14.04 LTS. An incorrect locking fix caused a regression that broke graphics displays for Ubuntu 14.04 LTS guests running the Ubuntu 14.10 backport kernel within VMWare virtual machines. This update fixes the problem.
We apologize for the inconvenience.
Original advisory details:
halfdog discovered that OverlayFS, when mounting on top of a FUSE mount, incorrectly propagated file attributes, including setuid. A local unprivileged attacker could use this to gain privileges. (CVE-2016-1576)
halfdog discovered that OverlayFS in the Linux kernel incorrectly propagated security sensitive extended attributes, such as POSIX ACLs. A local unprivileged attacker could use this to gain privileges. (CVE-2016-1575)
It was discovered that the Linux kernel's Filesystem in Userspace (FUSE) implementation did not handle initial zero length segments properly. A local attacker could use this to cause a denial of service (unkillable task). (CVE-2015-8785)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 14.04 LTS: linux-image-3.16.0-62-generic 3.16.0-62.83~14.04.1 linux-image-3.16.0-62-generic-lpae 3.16.0-62.83~14.04.1 linux-image-3.16.0-62-lowlatency 3.16.0-62.83~14.04.1 linux-image-3.16.0-62-powerpc-e500mc 3.16.0-62.83~14.04.1 linux-image-3.16.0-62-powerpc-smp 3.16.0-62.83~14.04.1 linux-image-3.16.0-62-powerpc64-emb 3.16.0-62.83~14.04.1 linux-image-3.16.0-62-powerpc64-smp 3.16.0-62.83~14.04.1
After a standard system update you need to reboot your computer to make all the necessary changes.
References: http://www.ubuntu.com/usn/usn-2909-2 http://www.ubuntu.com/usn/usn-2909-1 https://launchpad.net/bugs/1548587
Package Information: https://launchpad.net/ubuntu/+source/linux-lts-utopic/3.16.0-62.83~14.04.1
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