drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Mehrere Probleme in Linux
Name: |
Mehrere Probleme in Linux |
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ID: |
USN-3444-1 |
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Distribution: |
Ubuntu |
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Plattformen: |
Ubuntu 16.04 LTS |
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Datum: |
Mi, 11. Oktober 2017, 06:10 |
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Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-12134
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-14106
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-14140 |
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Applikationen: |
Linux |
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Originalnachricht |
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========================================================================== Ubuntu Security Notice USN-3444-1 October 10, 2017
linux, linux-aws, linux-gke, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 16.04 LTS
Summary:
Several security issues were fixed in the Linux kernel.
Software Description: - linux: Linux kernel - linux-aws: Linux kernel for Amazon Web Services (AWS) systems - linux-gke: Linux kernel for Google Container Engine (GKE) systems - linux-kvm: Linux kernel for cloud environments - linux-raspi2: Linux kernel for Raspberry Pi 2 - linux-snapdragon: Linux kernel for Snapdragon processors
Details:
Jan H. Schönherr discovered that the Xen subsystem did not properly handle block IO merges correctly in some situations. An attacker in a guest vm could use this to cause a denial of service (host crash) or possibly gain administrative privileges in the host. (CVE-2017-12134)
Andrey Konovalov discovered that a divide-by-zero error existed in the TCP stack implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2017-14106)
Otto Ebeling discovered that the memory manager in the Linux kernel did not properly check the effective UID in some situations. A local attacker could use this to expose sensitive information. (CVE-2017-14140)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 16.04 LTS: linux-image-4.4.0-1008-kvm 4.4.0-1008.13 linux-image-4.4.0-1032-gke 4.4.0-1032.32 linux-image-4.4.0-1038-aws 4.4.0-1038.47 linux-image-4.4.0-1075-raspi2 4.4.0-1075.83 linux-image-4.4.0-1077-snapdragon 4.4.0-1077.82 linux-image-4.4.0-97-generic 4.4.0-97.120 linux-image-4.4.0-97-generic-lpae 4.4.0-97.120 linux-image-4.4.0-97-lowlatency 4.4.0-97.120 linux-image-4.4.0-97-powerpc-e500mc 4.4.0-97.120 linux-image-4.4.0-97-powerpc-smp 4.4.0-97.120 linux-image-4.4.0-97-powerpc64-emb 4.4.0-97.120 linux-image-4.4.0-97-powerpc64-smp 4.4.0-97.120 linux-image-aws 4.4.0.1038.40 linux-image-generic 4.4.0.97.102 linux-image-generic-lpae 4.4.0.97.102 linux-image-gke 4.4.0.1032.33 linux-image-kvm 4.4.0.1008.8 linux-image-lowlatency 4.4.0.97.102 linux-image-powerpc-e500mc 4.4.0.97.102 linux-image-powerpc-smp 4.4.0.97.102 linux-image-powerpc64-emb 4.4.0.97.102 linux-image-powerpc64-smp 4.4.0.97.102 linux-image-raspi2 4.4.0.1075.75 linux-image-snapdragon 4.4.0.1077.69
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: https://www.ubuntu.com/usn/usn-3444-1 CVE-2017-12134, CVE-2017-14106, CVE-2017-14140
Package Information: https://launchpad.net/ubuntu/+source/linux/4.4.0-97.120 https://launchpad.net/ubuntu/+source/linux-aws/4.4.0-1038.47 https://launchpad.net/ubuntu/+source/linux-gke/4.4.0-1032.32 https://launchpad.net/ubuntu/+source/linux-kvm/4.4.0-1008.13 https://launchpad.net/ubuntu/+source/linux-raspi2/4.4.0-1075.83 https://launchpad.net/ubuntu/+source/linux-snapdragon/4.4.0-1077.82
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