drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Mehrere Probleme in Linux
Name: |
Mehrere Probleme in Linux |
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ID: |
USN-3146-1 |
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Distribution: |
Ubuntu |
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Plattformen: |
Ubuntu 16.04 LTS |
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Datum: |
Do, 1. Dezember 2016, 07:47 |
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Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-8658
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-9644
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-7097
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-7425 |
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Applikationen: |
Linux |
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Originalnachricht |
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========================================================================== Ubuntu Security Notice USN-3146-1 November 30, 2016
linux vulnerabilities ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 16.04 LTS
Summary:
Several security issues were fixed in the kernel.
Software Description: - linux: Linux kernel
Details:
It was discovered that the __get_user_asm_ex implementation in the Linux kernel for x86/x86_64 contained extended asm statements that were incompatible with the exception table. A local attacker could use this to gain administrative privileges. (CVE-2016-9644)
Andreas Gruenbacher and Jan Kara discovered that the filesystem implementation in the Linux kernel did not clear the setgid bit during a setxattr call. A local attacker could use this to possibly elevate group privileges. (CVE-2016-7097)
Marco Grassi discovered that the driver for Areca RAID Controllers in the Linux kernel did not properly validate control messages. A local attacker could use this to cause a denial of service (system crash) or possibly gain privileges. (CVE-2016-7425)
Daxing Guo discovered a stack-based buffer overflow in the Broadcom IEEE802.11n FullMAC driver in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly gain privileges. (CVE-2016-8658)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 16.04 LTS: linux-image-4.4.0-51-generic 4.4.0-51.72 linux-image-4.4.0-51-generic-lpae 4.4.0-51.72 linux-image-4.4.0-51-lowlatency 4.4.0-51.72 linux-image-4.4.0-51-powerpc-e500mc 4.4.0-51.72 linux-image-4.4.0-51-powerpc-smp 4.4.0-51.72 linux-image-4.4.0-51-powerpc64-emb 4.4.0-51.72 linux-image-4.4.0-51-powerpc64-smp 4.4.0-51.72 linux-image-generic 4.4.0.51.54 linux-image-generic-lpae 4.4.0.51.54 linux-image-lowlatency 4.4.0.51.54 linux-image-powerpc-e500mc 4.4.0.51.54 linux-image-powerpc-smp 4.4.0.51.54 linux-image-powerpc64-emb 4.4.0.51.54 linux-image-powerpc64-smp 4.4.0.51.54
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-3146-1 CVE-2016-7097, CVE-2016-7425, CVE-2016-8658, CVE-2016-9644
Package Information: https://launchpad.net/ubuntu/+source/linux/4.4.0-51.72
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