drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Mehrere Probleme in Linux
Name: |
Mehrere Probleme in Linux |
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ID: |
USN-2909-1 |
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Distribution: |
Ubuntu |
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Plattformen: |
Ubuntu 14.04 LTS |
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Datum: |
Di, 23. Februar 2016, 08:58 |
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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-2015-8785
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-1575 |
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Applikationen: |
Linux |
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Originalnachricht |
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========================================================================== Ubuntu Security Notice USN-2909-1 February 22, 2016
linux-lts-utopic vulnerabilities ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 14.04 LTS
Summary:
Several security issues were fixed in the kernel.
Software Description: - linux-lts-utopic: Linux hardware enablement kernel from Utopic
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 3.16.0-62.82~14.04.1 linux-image-3.16.0-62-generic-lpae 3.16.0-62.82~14.04.1 linux-image-3.16.0-62-lowlatency 3.16.0-62.82~14.04.1 linux-image-3.16.0-62-powerpc-e500mc 3.16.0-62.82~14.04.1 linux-image-3.16.0-62-powerpc-smp 3.16.0-62.82~14.04.1 linux-image-3.16.0-62-powerpc64-emb 3.16.0-62.82~14.04.1 linux-image-3.16.0-62-powerpc64-smp 3.16.0-62.82~14.04.1
After a standard system update you need to reboot your computer to make all the necessary changes.
ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual, linux-powerpc), a standard system upgrade will automatically perform this as well.
References: http://www.ubuntu.com/usn/usn-2909-1 CVE-2015-8785, CVE-2016-1575, CVE-2016-1576
Package Information: https://launchpad.net/ubuntu/+source/linux-lts-utopic/3.16.0-62.82~14.04.1
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